38results about How to "Increase combustion space" patented technology

The invention relates to a method for adopting waste derivative oversize material as substitute for cement kiln fuel, which is characterized in that the domestic waste in refuse reclamation station is separated and sorted, broken in packages, crushed and completely stirred and mixed, one part of the waste enters a precombustion furnace in the kiln tail of a cement kiln for combustion, while the other part of the waste enters the cement kiln from the kiln hood for combustion, thus the substitute fuel for cement production is produced. The invention has the advantages that the waste derivative oversize material having calorific value is adopted to substitute for industrial fuel in the cement kiln, thus resources of waste derivative oversize material are fully utilized, and coal energy resources are saved; simultaneously the cement kiln has the characteristics of high temperature, large carrying capacity, no residue after waste treatment and no secondary pollution, therefore the invention has the great advantages of energy saving and environmental protection.

The invention provides a technical scheme of a top combustion hot blast stove combustor comprising a furnace shell, wherein the inner side of the furnace shell is provided with a refractory masonry; the furnace shell and the refractory masonry are formed into a combustion space composed of three space segments with different shapes at the upper, middle and lower ends, wherein the upper end is provided with a spherical combustion chamber segment, the middle is provided with a straight combustion chamber segment, and the lower end is provided with a tapered combustion chamber segment; the three space segments are communicated with each other; the straight combustion chamber segment is provided with a combustion air inlet, a combustion air nozzle, an annular combustion air channel, a coal gas inlet, a coal gas nozzle, an annular coal gas channel and an annular mixed channel; the inner side of the straight combustion chamber segment is provided with an annular retaining wall. According to the scheme, the top combustion hot blast stove combustor is small in whole occupied space, high in combustion temperature, very suitable for modifying hot blast stove and particularly suitable for changing an internal combustion hot blast stove into a top combustion hot blast stove. By using the top combustion hot blast stove combustor, the modification expense can be reduced, and most importantly, the blast temperature of the hot blast stove can be increased.

This invention relates to one multi-surface stand burst furnace and method to realize coke cleaning burst, wherein, the burst furnace comprises the following parts: column furnace with channel exit located on top cover and rotation row located on the bottom of the furnace; at least one gas chamber and one pair of burst stand symmetric cross isolation element and space burst mouth between the isolation parts down end and furnace row with gas room and burst room connected; each gas chamber top furnace wall is located with each coke adding mouth with smoke exit mouth and reside exit mouth downside as secondary mouth. The burst method is to cooperate with multiple gas rooms through rotation furnace row.

The invention discloses a novel efficient pulverized coal combustion device, which comprises a bottom frame, a hearth, a stable combustion chamber, an air powder adjusting mechanism, a fan, an ignition device and an electric control system, wherein the air powder adjusting mechanism is sequentially provided with an outer direct flowing air flue, a cyclone passage, an inner direct flowing air flue, a pulverized coal air flue and a central pipe from an outer layer to an inner layer; the fan is communicated with the outer direct flowing air flue, the cyclone passage and the inner direct flowing air flue; and a direct flowing blade is arranged at the outlet end of the outer direct flowing air flue, a cyclone blade is arranged in the cyclone passage, a plurality of direct flowing blades are uniformly arranged at the outlet of the inner direct flowing air flue, the central pipe is conical at the outlet position, a plurality of bent blades are uniformly arranged at the outlet of the pulverized coal air flue, and the inner edges of the bent blades are matched with the conical shape of the end of the central pipe. The device has the characteristics of compact structure, full combustion of pulverized coal, high coal adaptability, long service life and convenience in ignition, and can meet various heating requirements in the road building industry.

The invention discloses a detachable solid fuel suspension combustion experiment testing device and a detachable solid fuel suspension combustion experiment testing method, belonging to the technical field of a solid fuel combustion experiment. The testing device comprises a suspension combustion mechanism, a combustion data acquisition mechanism, a gas supply mechanism and an ignition mechanism; a base is arranged on a base bracket; the lower end hole of a primary combustion pipe is communicated and in detachable connection with the upper end hole of an inner pipe of the base; the lower end hole of a secondary combustion pipe is communicated and in detachable connection with the upper end hole of the primary combustion pipe; two porous metal plates are respectively arranged at the upper end hole of the inner pipe of the base and the upper end hole of the primary combustion pipe. The testing method comprises the steps of placing fuel; enabling the fuel to suspend; burning; acquiring combustion data; finishing the experiment. The device and the method mainly have the functions of realizing visualization of a combustion state, realizing uniform combustion at a suspended state, carrying out a combustion test on multiple samples for once and enabling the large-particle samples to be easily ignited.

The invention discloses an annular flame type bio-oil burner. An oil guide tube is arranged in a burner body, the bottom end of the oil guide tube is provided with a bio-oil inlet, the other end of the oil guide tube is provided with a combustion head, one side of the combustion head is provided with an igniter, a combustion cover is arranged above the combustion head, N flame passages are arranged in the combustion cover, N > / = 2, the bottom ends of the passages are connected to a flame inlet matching with the flame spraying port of the combustion head, the flame passages are in upward spiral types, and the flame sprayed from the flame passages are in an annular structure. The direction of the air flow outside the flame spraying port is divided into two or multiple directions under the effect of resistance, the annular flame is formed outside the spraying port, the combustion time of a hearth is increased, the combustion is performed completely, a smoke value is low, the combustion space is increased by the arrangement of the flame passages, vibration force is reduced, and noise is small.

The invention discloses a preposed reaction device of a pulverized coal boiler. The preposed reaction device comprises a preposed reaction mechanism, a rich-lean pulverized coal separation mechanism, an ignition mechanism, a steam system, an air system and an oxygen system, wherein an inlet channel, a reaction chamber and an outlet channel of the preposed reaction mechanism are communicated sequentially; the tail end of the outlet channel is communicated with a hearth of the boiler; the rich-lean pulverized coal separation mechanism comprises a rich-lean separator, a rich pulverized coal section and a lean pulverized coal section; the rich-lean separator is communicated with the inlet channel of the reaction chamber through the rich pulverized coal section, and is communicated with the hearth of the boiler through the lean pulverized coal section; the ignition mechanism is arranged at the inlet channel part, and is used for igniting the thick pulverized coal entering the reaction chamber; and the steam system, the air system and the oxygen system are respectively arranged on the reaction chamber, and are respectively used for regulating the flow rate of steam, air and oxygen entering the reaction chamber. The preposed reaction device of the pulverized coal boiler provided by the invention can lower NOx content in flue gas, can lower the running cost, and can improve the adaptability of a boiler to coal quality.

The invention relates to a combustor for an industrial furnace, and belongs to the technical field of combustors. The combustor for the industrial furnace comprises a combustion chamber defined by a bottom cover, a lateral wall and an opening, wherein the bottom cover is connected to fuel through a fuel pipe, a flame outlet is formed in the top end of the lateral wall and is located above the opening, a heat preservation cover covers the upper portion of the lateral wall, the heat preservation cover forms a heat preservation chamber between the opening and the flame outlet, an air cover is arranged outside the heat preservation cover, the air cover, the heat preservation cover and the lateral wall form an air chamber at the lower portion of the lateral wall, and the air chamber is communicated with the combustion chamber through the lateral wall with an air hole, and is connected to an air source through a poroid air plate and an air inlet pipe at the bottom of the air chamber. The combustor for the industrial furnace has the advantages of being high in combustion efficiency, convenient and fast to apply and the like, and can be applied to existing industrial furnaces.

The invention discloses a central back combustion boiler with water pipes being transversely scoured. The central back combustion boiler with the water pipes being transversely scoured mainly comprises a combustor, a shell, a boiler furnace, a smoke transferring chamber and a box type heat exchanger. The central back combustion boiler with the water pipes being transversely scoured is characterized in that the boiler shell is a cuboid, the upper boiler furnace is arranged on the upper portion of the interior of the boiler shell, and the lower box type heat exchanger is arranged on the lower portion of the interior of the boiler shell; the boiler furnace is wavy, the internal combustion mode is central back combustion; the front end of the boiler furnace is welded to the smoke transferring chamber, and an oval sealing head is welded to the rear end of the boiler furnace; the multiple vertical heat exchange water pipes are arranged in the box type heat exchanger, an inlet of the box type heat exchanger is welded to the smoke transferring chamber, and an outlet of the box type heat exchanger is connected with a chimney or an economizer; the boiler furnace, the smoke transferring chamber and the box type heat exchanger are all immersed in boiler water, and a smoke heat exchange surface is a totally-wet back structure. During operation, high-temperature smoke is discharged from the front end of the boiler furnace, passes through the smoke transferring chamber and then enters the box type heat exchanger, the smoke transversely scours the heat exchange water pipes arranged in a staggered mode and heats water in the water pipes, and hot water rises and is discharged from a water outlet pipe on the upper portion of the boiler after being heated again through the boiler furnace. The central back combustion boiler is simple in structure, the heat exchange effect is good due to the fact that the smoke transversely scours pipe bundles, and the heat efficiency of the boiler is high.

A tiny engine, in particular a tiny engine based on quasi - forces of gas flow circulating principle makes motor outputting power reach superhigh energy density. Tiny engine includes inner cam flywheel disk, slipper, cylinder body, piston rotor shaft, cover board, gas transmission mechanism and probe type spark plug. Said space in piston rotor shaft is premixing chamber for feeding high pressure gas fuel to cylinder body firing chamber, thereby realizing the thermodynamics effect through pre-set premix high pressure gas fuel form to substitute perfect gas power cycle constant entropy adiabatic compression process. Said invention has higher output loop net work, higher energy density and more simple system structure.