282results about How to "Lower replacement costs" patented technology

The utility model relates to a natural gas filter, which belongs to a filtering device for natural gas pipelines in petroleum gathering and transportation projects such as natural gas fields, gas transmission and distribution pressure regulation systems, and city gate stations. It includes a cylinder with an opening on the top, a filter element placed in the cylinder, and a sealing mechanism for sealing the opening. The cylinder is provided with a raw material gas inlet, a purified gas outlet, and a sewage outlet. The filter element is The upper end is close to the opening, and the lower end of the filter element is connected to the outlet of the purified gas. The characteristic is that the sealing mechanism includes a high neck extending on the top of the cylinder, a sealing cover, a quarter ring, a protective cover, and fixing screws. Advantages: opening and closing the container becomes fast, convenient, time-saving, labor-saving and cost-saving; the sealing mechanism has a self-locking structure, which uses the pressure of its own natural gas in the container to lift the sealing cover, and the sealing cover and the high neck The space is sealed by an O-ring, and the four-part ring lifts the cover to meet the requirements of self-locking sealing. The sealing performance is good, which can prevent the container from leaking and reduce the incidence of accidents.

The invented manufacturing method includes following steps. (1) Uncoiling, flattening steel strip. (2) After three steps of stamping, through machine press and upgrading stamping mold, the steel strip is divided into two continuous jugged strips in same size. (3) Two strips of iron core are processed as two rounded helicoids loose iron core separated from the strips by wrapping machine. (4) With being located in mould, welding the said loose iron core obtains integral stator iron core having regular teeth and specific size. (5) Welded iron core put into shaping device through oil press is shaped. (6) Finishing step. The method provides advantages of high utilization rate, good quality of product, low price, and simple structure of equipment.

The invention provides a high-temperature condensed water recycling and purifying with a ceramic membrane filter. The high-temperature condensed water recycling and purifying with the ceramic membrane filter comprises a concentrating tank, a dual-pump structure, the ceramic membrane filter, a cleaning tank and a water purifying tank; the water outlet of the concentrating tank is connected with the water inlet of the dual-pump structure through a pipeline; the water outlet of the dual-pump structure is connected with the circulating water inlet of the ceramic membrane filter; the circulating water outlet of the ceramic membrane filter is connected with a communicating pipe of the dual-pump structure through a pipeline; the water purifying port of the ceramic membrane filter is connected tothe water purifying tank through a pipeline; the water inlet of the cleaning tank is connected with the water purifying port of the ceramic membrane filter through a three-way pipeline; the cleaning solution outlet of the cleaning tank is connected with the water inlet of the dual-pump structure through a three-way pipe; and the cleaning water returning port of the cleaning tank is connected withthe circulating water inlet of the ceramic membrane filter. The high-temperature condensed water recycling and purifying with the ceramic membrane filter is divided into two processing units so that separation and filtration can be separated; and by continuous concentration of water, a processing device for separating according to the physical characteristics of a medium is provided. The device occupies a small area, has high integration degree and a short construction period, and is easy to install.

The invention relates to a supported phosphorus-vanadium-cesium-lanthanum catalyst and application thereof, particularly a catalyst for synthesizing methyl acrylate from formaldehyde and methyl acetate and application thereof.. The invention aims to provide a catalyst for preparing methyl acrylate from methyl acetate and formaldehyde, which has the advantages of high catalytic performance and long service life, and application thereof. According to the technical scheme, the active components of the catalyst are vanadium, phosphorus, cesium and lanthanum, the charge capacity of vanadium is 0.2-2 mmol / g, and the V:P:Cs:La mol ratio is 1:(0.5-1.5):(0.1-1.1):(0.01-0.05). The invention can be used for preparing methyl acrylate from methyl acetate and formaldehyde, and has the advantages of high catalytic performance and long service life.

The invention provides a liquid detergent throwing device which is accurate in metering, simple in structure, low in cost and convenient to use and operate. The liquid detergent throwing device is provided with a main channel (2), a water inlet valve (1) is connected to a main channel inlet, a main channel outlet is connected with a washing bucket water inlet, the liquid detergent throwing device is provided with a piston (6), a one-way valve A (3), a one-way valve B (5) and a detergent A box (4), the piston is connected to the main channel, a main channel water inlet section is constituted between a piston inlet and the main channel inlet, a main channel outlet section is constituted between a piston outlet and the main channel outlet, an inlet of the one-way valve A is connected with the detergent box A, an outlet of the detergent box A bypasses the main channel water inlet section, the one-way valve B is connected to the main channel water outlet section, and an inlet and an outlet of the one-way valve B corresponds to the piston outlet and the main channel outlet respectively. The liquid detergent throwing device is used for feeding water for a washing machine and throwing detergent.

The present invention relates to a device for manufacturing tempered glass using chemical strengthening and a manufacturing method therefor. The present invention manufactures tempered glass by raising the temperature of plate glass and preheating the plate glass at first and second preheating units step by step; substituting with potassium ions within a potassium nitrate solution of a chemical strengthening unit; cooling the plate glass through first and second slow cooling processes at first and second slow cooling units; and cleaning the plate glass by fine bubbles while securing stability of the glass at a cleaning unit. Due to this feature, the present invention can maximally shorten the process time for manufacturing tempered glass to considerably enhance yield and improve defect rate, and further can manufacture all types of plate glass such as thin plate glass and thick plate glass into chemically tempered glass regardless of the standard of plate glass.

The invention discloses a reverse osmosis-based high-concentration sewage treatment method. The reverse osmosis-based high-concentration sewage treatment method comprises the following steps of firstly pre-filtering and pre-heating the sewage; carrying out the reverse osmosis treatment on the preheated sewage; feeding the preheated sewage to the bottom of a reverse osmosis treatment device; feeding the sewage on the bottom into a primary sewage laminar flow passage through an elongated distributing hole, dispersing the sewage to the periphery of a laminar flow disc through a spoke-shaped guide passage arranged on the surface of the laminar flow disc, enabling the sewage to upwards reversely enter the other side of the passage when the sewage flows to the edge of the laminar flow disc, then converging the sewage onto a central hole, enabling the sewage to upwards reversely enter a secondary sewage laminar flow passage through the elongated distribution hole, circulating the sewage to form a radiated S-shaped route from bottom to top, and finally discharging the sewage through a concentrated liquid discharging port; a water purification component permeates a reverse osmosis membrane of a filter membrane assembly to be conveyed to a permeate liquid outlet to be discharged. The reverse osmosis-based high-concentration sewage treatment method has the advantages of high sewage treatment efficiency, high water yield, low energy consumption, long service life of the filter membrane and the like.

The invention discloses a system, technology and method for de-nitrating flue gas of a cement kiln and recovering the waste heat of flue gas of a cement kiln. The system comprises a preheater, a wasteheat boiler, a highly hot air blower, a high temperature bag deduster, an SCR denitration reactor, a raw mill, a kiln tail deduster, an induced draft fan, a heat exchanger, and a chimney. A flue gasoutlet in the tail part of a rotary cement kiln is communicated with an inlet in the lower part of the preheater through a pipeline. The outlet in the top of the preheater is communicated with the inlet in the top of the waste heat boiler through a pipeline. The outlet in the lower part of the waste heat boiler is communicated with the inlet of the high temperature bag deduster through a pipeline.The outlet of the high temperature bag deduster is communicated with the inlet of the SCR denitration reactor through a pipeline. The outlet in the bottom of the SCR denitration reactor is communicated with the inlet of the raw mill through a pipeline. The outlet of the raw mill is communicated with the inlet of the kiln tail deduster through a pipeline. The ultralow temperature waste heat utilization and ultralow pollutant discharge are effectively co-researched. The content of NOx in flue gas of a cement kiln is efficiently reduced, the energy consumption is low, and finally discharged fluegas meets the discharge requirements.

The invention relates to a method for resource utilization of skim serum, and in particular relates to a method for recycling rubber and quebrachitol from skim serum, which belongs to the technical field of resource utilization of rubber. The method comprises the following steps: 1, filtering the skim serum by a micro-filtration membrane so as to obtain a micro-filtration concentrated liquid and a micro-filtration penetrating fluid; 2, adding a sulfuric acid solution into the micro-filtration concentrated liquid for solidifying, and drying the obtained solid so as to obtain recycled rubber; 3, filtering the micro-filtration penetrating fluid by an ultra-filtration membrane so as to obtain an ultra-filtration concentrated liquid and an ultra-filtration penetrating fluid; 4, feeding the ultra-filtration penetrating fluid into a resin for purifying, subsequently eluting so as to obtain an eluant, and crystallizing and re-crystallizing the eluant so as to obtain a quebrachitol crystal. By the method, dried rubber and quebrachitol can be simultaneously recycled from the skim serum, the waste resource is effectively recycled, and great social benefits, environment benefits and economic benefits are obtained.

Provided is a method for manufacturing a cyclic carbonate which is a method for manufacturing a cyclic carbonate by reacting epoxide and carbon dioxide, the method being capable of efficiently manufacturing a cyclic carbonate at a high conversion percentage and high yield, and in which degradation of the catalyst over time is inhibited and catalytic activity is unlikely to occur. A method for manufacturing a cyclic carbonate for reacting epoxide and carbon dioxide in the presence of a quaternary onium salt selected from quaternary ammonium salt having a halogenated anion as a counter ion and a quarternary phosphonium salt having a halogenated anion as a counter ion, or in the presence of a solid catalyst in which the quarternary onium salt has been immobilized on a carrier, wherein a halogenated organic containing at least one halogen atom in one molecule is added to the reaction system.

A driver assistance apparatus for a vehicle includes an object detection sensor that acquires data in at least one of a driving direction of the vehicle and around the vehicle. The driver assistance apparatus also includes a processor that detects, based on the acquired data, an object and determines, based on the acquired data, at least one attribute of the detected object. The processor detects that the vehicle has collided with the object and determines, based on detecting that the object has collided with the vehicle and based on the at least one attribute of the object, whether to perform a hood lift-up or pedestrian protection airbag deployment. The processor further provides a control signal for the hood lift-up or the pedestrian protection airbag deployment based on determining whether to perform the hood lift-up or the pedestrian protection airbag deployment.

The invention relates to a solid and oil removal method and device for MTO (methanol to olefin) / MTP (methanol to propylene) chilled water and washed water. The method disclosed by the invention mainly comprises the following steps of carrying out ultrafiltration membrane separation on MTO / MTP chilled water, feeding an ultrafiltration membrane concentrated solution into a three-phase cyclone-separator separation system, and recovering a catalyst and oil; cooling ultrafiltration membrane permeated liquid, and feeding the obtained liquid back to a chilled water system to cyclically reuse; carrying out ultrafiltration membrane separation on MTO / MTP washed water, feeding an ultrafiltration membrane concentrated solution into the three-phase cyclone-separator separation system, and recovering a catalyst and oil; and cooling ultrafiltration membrane permeated liquid and feeding the obtained liquid back to a washed water system to cyclically reuse. The invention also provides a solid and oil removal device for MTO / MTP chilled water and washed water.

The invention belongs to the field of nonferrous metal recovery, and particularly relates to a method for recovering vanadium, tungsten and titanium elements from a waste SCR denitration catalyst. Themethod for recovering the vanadium, tungsten and titanium elements comprises the steps of raw material pretreatment, vanadium separation and recovery, tungsten separation and recovery and titanium recovery; and by means of the recovery process, high-value recovery products such as V2O5, Na2WO4 and titanium-rich slag can be recovered from the waste SCR denitration catalyst. A recovery process hasthe advantages of low cost, the high element recovery rate, excellent recovered product quality, easiness in industrial application and the like, and has the extremely high application value in the field of waste SCR denitration catalyst recovery.