41results about How to "Solve clogged pipes" patented technology

The invention relates to a melting treatment method for waste incineration flying ash, and belongs to the technical field of environmental engineering. The treatment method comprises the following steps of carrying out pretreatment on the waste incineration flying ash to form treated flying ash; uniformly mixing the treated flying ash with sludge to form a mixture of the flying ash and the sludge; carrying out solidification and stabilization on the mixture of the flying ash and the sludge to form a solidified body; and carrying out melting treatment on the solidified body. The treatment method can effectively solve the problems that the caloric value in the flying ash is relatively low, and heavy metals in the flying ash are liable to volatilize, so that pipeline blockage in a flying ash conveying process is avoided; and the melting treatment method is good in treatment effect, is low in cost, is free from secondary pollution, and is high in resource utilization.

This invention relates to a water-cooling continuous carbonization machine for producing carbon powder from stalk. Multi-stage carbonization pipes are set in a carbonization chamber. A screw conveyer is set in each carbonization pipe. The screw conveyers are connected via double wheels and double chains. The screw conveyers in two carbonization pipes in upper and lower stages have reverse propelling directions. The propelling endpoint of the upper stage carbonization pipe and the propelling start point are through connected via a discharge passage. A gas collection chamber is set in the carbonization chamber to recover and recycle residual gas by an injection blower. An adjustment valve and a pressure reducer are set on the air return pipe. A discharge hopper is set in the circulating cooling water tank, and isolated from the circulating cooling water tank to realize dry cooling of carbon powder. The machine can ensure even speed continuous propelling of the raw material. The flue gas can be re-combusted, thus can avoid coal tar harm. The machine has such advantages as high carbonization temperature, no exhaust gas, low labor intensity, high production efficiency and high carbon powder quality.

The invention provides a vertical type tubular reactor for deenergization and alkali hydrolysis of TNT (Trinitrotoluene). The vertical type tubular reactor comprises a heat insulation tube, wherein the heat insulation tube is internally connected with a disc-shaped alkali hydrolysis reaction tube through a fixed bracket; the disc-shaped alkali hydrolysis reaction tube is spirally arranged in the heat insulation tube; a spiral shaft and the heat insulation tube are coaxially arranged; an alkali liquid spraying pipe is embedded into the disc-shaped alkali hydrolysis reaction tube; the alkali liquid spraying pipe and the disc-shaped alkali hydrolysis reaction tube are coaxially arranged; a plurality of micro-pores are formed in the alkali liquid spraying pipe; the heat insulation tube is vertically arranged; a heat insulation medium adopts heat insulation water; the heat insulation water enters from a bottom water inlet of the heat insulation tube and then is discharged from a top water outlet; the disc-shaped alkali hydrolysis reaction tube is a TNT alkali hydrolysis reaction region; the TNT enters from a top feeding opening of the disc-shaped alkali hydrolysis reaction tube and alkali liquid is sprayed out from the alkali liquid spraying pipe; after reaction, the TNT is discharged from a discharging opening formed in the bottom of the disc-shaped alkali hydrolysis reaction tube;a flowing direction of heat insulation water is opposite to the flowing direction of a reaction solution in the disc-shaped alkali hydrolysis reaction tube. By adopting the vertical type tubular reactor, the treatment efficiency of abandoned propellant and explosive is improved; meanwhile, the safety is improved.

The invention discloses a method for treating blockage of a regulating valve at an entrance of a spray gun in a urea ammonia production system. The method for treating the blockage of the regulating valve at the entrance urea spray gun in the urea ammonia production system comprises the following steps: comprehensively determining that blockage is caused by virtue of low urea solution flow of a urea solution regulating valve according to show value of a flow meter and experience, taking down the urea flow regulating valve (2), and washing a valve element of the urea flow regulating valve (2) with water at the temperature of 80-100 DEG C; mounting one compressed air hose between a compressed air inlet pipe (6) and a urea flow regulating valve outlet pipe (7), opening a compressed air inlet valve (4), and purging with compressed air at 0.2-0.6MPa; adjusting a position of an interface at one end of the compressed air hose from the urea flow regulating valve inlet pipe (7) to a urea flow regulating valve outlet pipe (8), and sweeping according to a previous operation step; and then repeating operation in the second step. The method for treating the blockage of the regulating valve at the entrance urea spray gun in the urea ammonia production system has the advantages that the problem that a pipeline and a valve are blocked by crystallized urea can be solved, flue gas denitrification efficiency is improved, and practicability is strong.

The invention relates to the technical field of gas-liquid separation devices in chemical engineering equipment, specifically to a high-freezing-point medium gas-liquid separator with a labyrinth-typegas inlet pipe heat-preserving device. The high-freezing-point medium gas-liquid separator successively comprises an elliptical seal head, a cyclone drum body and a cyclone cone body from top to bottom, wherein the elliptical seal head, the cyclone drum body, the cyclone cone body, a liquid discharging pipe and an exhaust pipe located at the exterior of the elliptical seal head are respectively sleeved by a heat-preserving sleeve to form heat-preserving cavities; a connecting circular pipe is arranged between adjacent heat-preserving cavities; a tangential gas inlet pipeline is arranged at one side of the drum body of the cyclone drum body and comprises a gas inlet circular pipe, a cone pipe and a rectangular pipe; four side surfaces of the cone pipe are respectively provided with a conepipe heat-preserving chamber; and four side surfaces of the rectangular pipe are respectively provided with a rectangular pipe heat-preserving chamber. According to the invention, heat-conductive oilenters from the heat-conductive oil inlet of a gas inlet pipe, respectively passes through the heat-preserving chambers located on four side surfaces of the cone pipe, the circular pipe heat-preserving chamber and the heat-preserving chambers located on four side surfaces of the rectangular pipe, and finally flows out from the heat-conductive oil outlet of the gas inlet pipe.

The invention discloses a device and method for preparing hydrogen-rich gas based on pyrolysis gas conversion of double fluidized beds. The device comprises a pyrolyzing furnace, a circulating fluidized bed, and a catalytic reactor, a superheater, a high-temperature dust remover, a waste heat boiler, an intercooler, a fan and a hydrogen-rich gas storage tank which are sequentially connected with the pyrolyzing furnace, and a cyclone dust collector, a high-temperature heat exchanger and a superheater which are sequentially connected with the circulating fluidized bed. A process route for preparing hydrogen-rich gas through catalytic reforming of tar water vapor under a high-temperature condition is adopted, and waste heat recovery is carried out through a combined mode of the superheater and the waste heat boiler, so that a mode of spraying ammonia water for quenching and electrically capturing tar is avoided; the problems that sensible heat of high-temperature pyrolysis gas is wasted, tar is condensed and separated out to block a pipeline, the pyrolysis gas amount is small and the hydrogen content is small are solved, heat needed by the device and high-temperature steam needed by reforming reaction both come from the circulating fluidized bed boiler side, steam or energy does not need to be supplemented externally, and the purposes of energy utilization and material utilization of the whole device are optimal are achieved.

The invention discloses a multilevel heating apparatus and method for a high-salt waste water supercritical water oxidation system, which belongs to the technical fields of chemical industry and environmental protection. The multilevel heating apparatus is formed by serially connecting a plurality of heating units, wherein each heating unit comprises a long straight pipe, a slide-rail pipeline heater, a thermometer and a pressure gauge, the heating units are connected by virtue of short straight pipes, and the heating unit is provided with parts such as a detachable insulating sleeve, an ultrasonic pipeline scale remover, a filter and an auxiliary material inlet. The conventional heating apparatus is divided into a plurality of heating units, the defects of the conventional electric heaterthat the heating pipes are intensively distributed and no additional operation space is provided can be solved, and conditions are provided for adding a pipeline filter, the ultrasonic pipeline scaleremover and a chemical inlet. When the high-salt waste water is heated, the crystallization blockage position of inorganic salts can be precisely positioned by virtue of temperature and pressure measure points, so that the scale can be removed on purpose by independently using or jointly using multiple means.

The invention relates to the technical field of sewage treatment, and discloses an environment-friendly sewage treatment device for solving sewage discharge blockage, which comprises a device main body, a rotating part is arranged in the device main body, the right side of the rotating part is movably connected with a movable part, the upper part of the movable part is movably connected with an extrusion rod, and the left side of the rotating part is provided with an incomplete gear; and the lower portion of the movable piece is movably connected with a sliding rail, and an elastic bag is arranged on the left of the sliding rail. According to the device, a driving device drives the rotating part to rotate anticlockwise, the upper portion of the movable part moves leftwards to drive the extrusion rod to move leftwards, the lower portion of the movable part drives the sliding rail to move leftwards and rightwards so as to extrude the elastic bag, the extrusion rod moves leftwards to extrude the lower portion of a pushing part, and the upper portion of the pushing part moves upwards to drive a fixing plate to move upwards;the fixing plate drives a filtering plate to move up when the fixing plate moves upwards, and impurities filtered on the filtering plate enter a filtering box along with the opening, so that large impurities in the sewage are filtered, and the problem that the impurities in the sewage block a pipeline is solved.

The invention discloses a wet dicyandiamide pneumatic conveying device which comprises a Roots blower, a heater and a quantitative stock bin, wherein an outlet silencer is arranged at the outlet of the Roots blower; an air outlet is formed in in the outlet silencer and is connected with the heater; the upper part of the quantitative stock bin is connected with a shaftless screw conveyer; a feedinghole is formed in the top of the quantitative stock bin; a pneumatic gate valve B is arranged at the lower part of the quantitative stock bin and is connected with a direct blowing rotary feeding valve arranged at the lower part; the direct blowing rotary feeding valve is connected with an exhaust pipeline below; the front end of the exhaust pipeline is connected with a hot-blast air inlet pipe;the exhaust pipeline is connected with a dissolving kettle arranged on the rear; a discharging pipe and a warehouse top reversing valve are arranged between the exhaust pipeline and the dissolving kettle; and a warehouse top exhaust pipe is arranged on the top of the dissolving kettle. During the actual using process, the wet dicyandiamide pneumatic conveying device adopts the quantitative conveying method to solve the problems about material adhesion to a wall and unsmooth discharging and to also solve the problem that the material blocks the pipeline to enable the production process to be smooth.

The invention discloses an oil pollution retaining valve, which comprises a handwheel, a top cover, a guide sleeve, a valve core, a valve body, an angle adjustment ruler, a filter element adjustment ruler, a valve cavity, a coarse filter membrane, a fine filter membrane, a water inlet, and a water outlet , core cavity, sewage outlet, oil outlet and bottom cover, the upper end of the valve body is provided with a hand wheel, the valve core is provided below the hand wheel; the angle adjustment ruler is provided on the hand wheel; the valve body is provided with The valve cavity, the valve core is installed in the valve cavity, the lower end of the valve body is provided with a bottom cover; one side of the valve body is provided with a water inlet. The oil pollution shut-off valve realizes the adjustment of the position of the filter port through the set angle adjustment ruler and the filter element adjustment ruler, thereby realizing the filtration of oily sewage with different densities; through the set sewage outlet and oil outlet, it realizes the pollution control Oil cleanup. The oil pollution retaining valve solves the problems of dirty oil corrosion and pipeline blockage, and has the advantages of convenient use, reasonable structure and good sewage discharge effect.

The invention discloses a pipe fitting. The pipe fitting comprises a pipe body, a sealing part and a screw cap, wherein outer threads are arranged on the outer wall of the pipe body, first internal threads are arranged on the inner wall of the pipe body, the first internal threads are used for connecting a pipeline, the screw cap is provided with second internal threads, the external threads are in threaded fit with the second internal threads so as to make the sealing part press the outer wall of the pipeline, and then seal a gap between the inner wall of the pipe body and the outer wall of the pipeline. According to the pipe fitting, installing and disassembly are convenient, the maintenance is easier, in addition, the problems of water quality pollution caused by using a liquid raw material belt and inconvenient disassembly and maintenance are avoided, meanwhile, usage of a polytetrafluoroethylene raw material is also avoided, so that the phenomenon that the inner wall of the pipeline is blocked by the polytetrafluoroethylene raw material is avoided.

The invention discloses a self-adaptive pipeline cleaning device with a pipeline dredging function. The self-adaptive pipeline cleaning device comprises a pipeline cleaning device body, wherein the pipeline cleaning device body is provided with a regulating and controlling box; two power devices are fixedly connected to the regulating and controlling box in an up-down symmetrical mode; each powerdevice comprises a direction rotating block; each direction rotating block is rotationally connected with a supporting rod; an adjusting cavity is formed in each supporting rod; and an adjusting sliding block is connected in each adjusting cavity in a sliding mode. According to the self-adaptive pipeline cleaning device with the pipeline dredging function, the power devices are arranged, the powerdevices carry out inner diameter calibration work on a pipeline before entering the pipeline, so that the size of the device is changed, then the efficiency of the device is higher, and meanwhile, the cleaning effect is better; and meanwhile, the device is provided with a blockage dredging device, when complete blockage is detected, a linkage mechanism is started to fix the device, meanwhile, thedredging device is used for carrying out force-generating dredging, acid spraying is carried out at the same time, and corrosion softening of concrete is accelerated.

The invention relates to crushing equipment for preventing sludge blockage. The crushing equipment comprises a spiral conveyor and a sludge dryer, wherein a crushing device is connected between the spiral conveyor and the sludge dryer; the crushing device comprises a housing, and a crushing and stirring cavity is formed in the housing; and a stirring and crushing mechanism for crushing sludge is rotatably connected in the crushing and stirring cavity. The crushing equipment is simple in structure and convenient and practical. By arranging the crushing device between the spiral conveyor and thesludge dryer, the crushing device crushes sludge fully, so that the volume of the sludge is decreased, the sludge is prevented from being agglomerated massively, and a condition of easy blockage of the sludge entering an inlet of the dryer when relatively humid or easily agglomerated sludge is conveyed is avoided.

The invention relates to methods for preventing hematoxylin from blocking pipes, particularly to a method for preventing the hematoxylin from blocking a pipe on biological slice production dyeing equipment. The method is characterized in that a pipe opening of a hematoxylin conveying pipe is closed and blocked by the residual liquid water in a water conveying pipe. According to the method for preventing the hematoxylin from blocking the pipe, the method is simple, the production cost is low, the operation is simple and easy, the problem that the pipe is blocked due to the hematoxylin oxide crystallization can be solved, the pipe dredging work during boot-up is reduced, the convenience is brought to the work of the operators, and the damage to the equipment can be avoided.