CN200940928Y - Forward/reverse purifying burning boiler having coal gasifying 3 chambers - Google Patents

Abstract

The utility model provides a coal gasification combustion boiler with reversible purification in three chambers, comprising a standing boiler body whose section is in square shape, the four side walls and top wall of the boiler body are provided with jackets, the inner of the boiler body is provided with cross jacket walls which divide the inner chamber into four baffled chambers: a cis-form burner, a reversing burner, a cis-form smoke chamber and a reversing smoke chamber; the cis-form burner is provided with a grate and a boiler door on the side wall; the reversing boiler chamber is provided with a cold water grate, and upper and lower boiler doors on the side wall; the cis-form and reversing chambers are provided with tube arrays, and an ash chamber which is below the cis-form and reversing chambers, the side wall of the ash chamber is provided with an ash door and a tuyere; the lower part and upper part of the jacket are respectively provided with a cold water inlet and a steam outlet; the bottom of the reversing smoke chamber is provided with an ash outlet; the upper and lower boiler doors on the side wall of the reversing burner are respectively provided with a secondary air inlet. The coal can be fully burnt in the utility model, the discharging heat can be fully absorbed, and the dust grains of the smoke can be subsided in the heads-and-feet baffled process. The utility model has high utilization rate and little pollution to the environment.

Description

Coal gasifies three Room along contrary purification of combustion boiler

Technical field

The utility model relates to the combustion chamber and the smoke-box of a kind of gasification coal-fired boiler, particularly a kind of gasification coal-fired boiler.

Background technology

Coal is to contain multiple organic a kind of natural minerals fuel, flammable fugitive constituent and flammable fixed carbon are arranged in the coal, coal is when burning, different flammable composition in the coal needs burning conditions such as different temperature and oxygen supply, and coal can produce different combustion efficiencies under different burning conditions.Coal is when the burning beginning, and flammable fugitive constituent is heated and discharges in advance; During the coal burning, the tiny carbon granule in the coal can fly out with the wind; Fixed carbon completing combustion when oxygen is sufficient generates carbon dioxide; Fixed carbon burns when oxygen is inadequate and produces flammable CO gas.

Coal-burning boiler has continuous combustion chamber and smoke-box, in combustion chamber and the smoke-box heat exchanger that links to each other is arranged, heat exchanger has cold water inlet and vapor outlet port, fire grate is arranged in the combustion chamber, and side wall of combustion chamber has fire door and air inlet, and coal burns in the combustion chamber, heat exchanger in the heating flame chamber, high-temperature flue gas enters smoke-box, and the heat exchanger in the heating smoke-box becomes the water heating evaporation in the heat exchanger steam to discharge.

In the prior art, coal-burning boiler just fires, and the coal of positive combusting boiler is on fire grate, the discharge flue of combustion chamber is above fire grate, fire grate below feeds sufficient air, allows coal completing combustion under the condition that enough oxygen is arranged, and high-temperature flue gas enters smoke-box through the top of combustion chamber.Fortune kind of the coal fire of combustion in right direction coal-burning boiler on fire grate is upwards burning, the imflammable gas that produces in when burning, coal tar and tiny carbon granule all from above discharge, imflammable gas and tiny carbon granule can not get burning utilization, become black smoke and discharge, cause that energy utilization rate is low, environmental pollution is serious from chimney.

Summary of the invention

The purpose of this utility model is in order to overcome above-mentioned deficiency, proposes a kind of imflammable gas that coal produces and tiny carbon granule little coal of energy utilization rate height, environmental pollution that utilizes that can be fully burned that makes and gasify three Room along contrary purification of combustion boiler when burning.

The utility model is realized with the following method.

Coal gasifies, and along contrary purification of combustion boiler the cross section to be arranged be square vertical body of heater in three Room, before the body of heater, after, a left side, right four sidewalls have the chuck that links to each other with upper side wall, it is that cross vertical folder jacket wall is divided into the cis combustion chamber to the body of heater inner chamber that the cross section is arranged in the body of heater, contrary formula combustion chamber, cis smoke-box and contrary four baffling chambers of formula smoke-box, there is passage the cis combustion chamber with the top of contrary formula combustion chamber, there is passage the below of contrary formula combustion chamber and cis smoke-box, the cis smoke-box has passage with the top of contrary formula smoke-box, cis has fire grate in the combustion chamber, the cis sidewall of combustion chamber has fire door, there is water-cooled grate centre in the contrary formula combustion chamber, fire grate is arranged at the bottom in the contrary formula combustion chamber, on contrary formula sidewall of combustion chamber has, lower furnace door, in cis smoke-box and the contrary formula smoke-box tubulation is arranged, there is cinder chamber the below of cis combustion chamber and contrary formula combustion chamber, cinder chamber's sidewall has the lime-ash door, cross vertical folder jacket wall in the body of heater, water-cooled grate in the contrary formula combustion chamber, the tubulation in cis smoke-box and the contrary formula smoke-box and the chuck of sidewall of the furnace body communicate, cold water inlet and vapor outlet port are arranged respectively at the bottom of sidewall of the furnace body chuck and top, cinder chamber's sidewall has blast orifice, exhanst gas outlet is arranged at the bottom of contrary formula smoke-box, on the contrary formula sidewall of combustion chamber, lower furnace door has secondary wind inlet, the bottom of body of heater chuck is connected with the water sealing (sealing water) pipe safety, and the pipe outlet of water sealing (sealing water) pipe safety is higher 2 meters than the upper side wall of body of heater.

During use, cold water inlet topped up with water in chuck at sidewall of the furnace body sidewall chuck, the coal of on cis combustion chamber and the contrary fire grate of formula combustion chamber, packing into, light the coal on the fire grate of contrary formula combustion chamber, in cinder chamber's sidewall blast orifice air blast, bottom exhanst gas outlet air inducing at contrary formula smoke-box, after the red-hot contrary formula burning of the coal layer on the water-cooled grate of contrary formula combustion chamber, light the coal on the fire grate of cis combustion chamber, close cis combustion chamber fire door, allow the coal on the fire grate of cis combustion chamber under the condition of anoxic, burn, the heat heating jacket that produces, imflammable gas that produces and tiny carbon granule enter the coal layer of red-hot burning on the water-cooled grate of contrary formula combustion chamber by the top of upper channel and contrary formula combustion chamber, the top of contrary formula combustion chamber water-cooled grate is the first contrary formula combustion chamber, the bottom of contrary formula combustion chamber water-cooled grate is the second contrary formula combustion chamber, imflammable gas and tiny carbon granule by the first contrary formula combustion chamber and the second contrary formula combustion chamber after by completing combustion, the heat heating jacket and the water-cooled grate that produce, the elevated temperature heat flue gas order that produces enters the cis smoke-box and enters contrary formula smoke-box from top from the bottom, chuck and tubulation in the heating smoke-box, chuck, after water-cooled grate and tubulation were heated, the water in the chuck was heated the generation steam and discharges from vapor outlet port.When the increased pressure in the chuck, the water level rising in the water sealing (sealing water) pipe safety, the increased pressure in chuck is to certain limit, and the water in the chuck is discharged from the outlet of water sealing (sealing water) pipe safety, the interior pressure of chuck is fallen come the work allowable pressure.

The utility model has cis combustion chamber, the first contrary formula combustion chamber and second contrary three combustion chambers, formula combustion chamber, cis smoke-box and contrary two smoke-boxes of formula smoke-box, fixed carbon in the coal can burn on fire grate, imflammable gas that burning produces and tiny carbon granule by the first contrary formula combustion chamber and the second contrary formula combustion chamber after by completing combustion, twice baffling of high-temperature flue gas is by cis smoke-box and contrary formula smoke-box heat release.Coal can fully burn in the utility model, and liberated heat can fully be absorbed, and flue gas settles down the dust granule in the flue gas in along contrary baffling process.The utility model energy utilization rate height, environmental pollution are little.

Below in conjunction with accompanying drawing, the utility model is further described.

Description of drawings

Fig. 1 is that cross-sectional schematic is looked along the master of contrary purification of combustion boiler in coal three Room of gasifying;

Fig. 2 is the A-A generalized section of Fig. 1;

Fig. 3 is the C-C generalized section of Fig. 2;

Fig. 1 is the B-B generalized section of Fig. 2.

The specific embodiment

Fig. 1, Fig. 2, Fig. 3, among Fig. 4, coal gasifies, and along contrary purification of combustion boiler the cross section to be arranged be square vertical body of heater 1 in three Room, before the body of heater, after, a left side, right four sidewalls 2,3,4,5 have the chuck 7 that links to each other with upper side wall 6, there is cross vertical folder jacket wall 8 that the body of heater inner chamber is divided into cis combustion chamber 9 in the body of heater, contrary formula combustion chamber 10, cis smoke-box 11 and contrary 12 4 chambers of formula smoke-box, there is passage 13 the cis combustion chamber with the top of contrary formula combustion chamber, there is passage 14 below of contrary formula combustion chamber and cis smoke-box, the cis smoke-box has passage 15 with the top of contrary formula smoke-box, fire grate 16 is arranged in the cis combustion chamber, the cis sidewall of combustion chamber has fire door 17, there is water-cooled grate 18 centre in the contrary formula combustion chamber, fire grate 34 is arranged at the bottom in the contrary formula combustion chamber, on contrary formula sidewall of combustion chamber has, lower furnace door 19,20, in cis smoke-box and the contrary formula smoke-box tubulation 21 is arranged, there is cinder chamber 22 below of cis combustion chamber and contrary formula combustion chamber, cinder chamber's sidewall has lime-ash door 23, cross vertical folder jacket wall in the body of heater, water-cooled grate in the contrary formula combustion chamber, the tubulation in cis smoke-box and the contrary formula smoke-box and the chuck of sidewall of the furnace body communicate, cold water inlet 24 and vapor outlet port 25 are arranged respectively at the bottom of sidewall of the furnace body chuck and top, cinder chamber's sidewall has blast orifice 26, exhanst gas outlet 27 is arranged at the bottom of contrary formula smoke-box, on the contrary formula sidewall of combustion chamber, lower furnace door has secondary wind inlet 28,29, the bottom of body of heater chuck is connected with water sealing (sealing water) pipe safety 30, and the pipe outlet 31 of water sealing (sealing water) pipe safety is higher 2 meters than the upper side wall of body of heater.Sewage draining exit 32 is arranged at the bottom of water jacket, and water level meter 33 is arranged at the top of water jacket.

Claims (1)

1. a coal gasifies three Room along contrary purification of combustion boiler, it is characterized in that: it is square vertical body of heater that the cross section is arranged, before the body of heater, after, a left side, right four sidewalls have the chuck that links to each other with upper side wall, it is that cross vertical folder jacket wall is divided into the cis combustion chamber to the body of heater inner chamber that the cross section is arranged in the body of heater, contrary formula combustion chamber, cis smoke-box and contrary four baffling chambers of formula smoke-box, there is passage the cis combustion chamber with the top of contrary formula combustion chamber, there is passage the below of contrary formula combustion chamber and cis smoke-box, the cis smoke-box has passage with the top of contrary formula smoke-box, cis has fire grate in the combustion chamber, the cis sidewall of combustion chamber has fire door, there is water-cooled grate centre in the contrary formula combustion chamber, fire grate is arranged at the bottom in the contrary formula combustion chamber, on contrary formula sidewall of combustion chamber has, lower furnace door, in cis smoke-box and the contrary formula smoke-box tubulation is arranged, there is cinder chamber the below of cis combustion chamber and contrary formula combustion chamber, cinder chamber's sidewall has the lime-ash door, cross vertical folder jacket wall in the body of heater, water-cooled grate in the contrary formula combustion chamber, the tubulation in cis smoke-box and the contrary formula smoke-box and the chuck of sidewall of the furnace body communicate, cold water inlet and vapor outlet port are arranged respectively at the bottom of sidewall of the furnace body chuck and top, cinder chamber's sidewall has blast orifice, exhanst gas outlet is arranged at the bottom of contrary formula smoke-box, on the contrary formula sidewall of combustion chamber, lower furnace door has secondary wind inlet, the bottom of body of heater chuck is connected with the water sealing (sealing water) pipe safety, and the pipe outlet of water sealing (sealing water) pipe safety is higher 2 meters than the upper side wall of body of heater.

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