CN1180062C

CN1180062C - Coal gasifiers

Info

Publication number: CN1180062C
Application number: CNB02109196XA
Authority: CN
Inventors: 袁奕明
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-02-21
Filing date: 2002-02-21
Publication date: 2004-12-15
Anticipated expiration: 2022-02-21
Also published as: CN1439695A

Abstract

The present invention relates to a coal gasifier. The present invention is characterized in that a body with a rectangular section is used and one side of the body is provided with a two-segment coal gas producer; the side surface of the two-segment coal gas producer is orderly provided with a closed water tank and a desulphurizing device and the closed water tank is communicated with the water jacket of the two-segment coal gas producer; a producer coal gas output pipeline penetrates through the closed water tank from top to bottom and the outlet of the producer coal gas output pipeline is communicated with the inlet of the desulphurizing device; a sleeve heat exchanger is arranged in the producer coal gas output pipeline, the inlet of the sleeve heat exchanger is communicated with a blower at the top of the producer, and the outlet is positioned above the water level of the closed water tank; a saturated air pipe penetrating through the bottom of the closed water tank is arranged in the closed water tank, the inlet of the pipe is positioned above the water level of the closed water tank, and the bottom end of the pipe is communicated with a saturated air annular pipe positioned at the bottom of the two-segment coal gas producer. The present invention has the advantages of uniform and thorough coal burning in the coal gasifying process, high heat efficiency, simple structure, small volume, low cost and automatic control.

Description

A kind of gasification of coal machine

Technical field

The invention belongs to a kind of gasification of coal machine, is a kind ofly to make gasification produce the gasification of coal machine of mixed gas with air and steam mixing air blast specifically.

Background technology

Two-Section Gas Generator goes out at coal gasification and stove and has following point aspect the purification of coal gas: (1), top coal gas contain tar, ground coal gas dust-laden, and push up, ground coal gas all contains sulphur, make it reach environmental protection requirement in order to purify coal gas, these impurity must be removed before stove goes out, it all is single devices that present stove goes out equipment such as coal gas decoking oil, dedusting and sulphur removal, and floor space is big, the cost height.(2), that stove goes out gas temperature is higher, the top gas temperature is at 100-150 ℃, 400-600 ℃ of this part sensible heat of ground coal temperature degree do not recycled.(3), secondary reformer is to come ash disposal by the continuous rotation of rotating fire grate, the air of supplying with burning usefulness is that the tolerance of stove inside circumference is not enough by the blast cap ejection of central authorities, and bigger coal cinder is rolled into periphery easily, make the coal of periphery be not easy abundant burning, the carbon residue content height in the coal.(4) present secondary reformer can not make the automatic control of coal gasification and scavenging process.

Summary of the invention

The purpose of this invention is to provide a kind of novel gasification of coal machine, it has overcome existing shortcoming in the prior art, at first the present invention rational in infrastructure, compact, can improve the thermo-efficiency in the coal gasification course.In addition, by improving the structure of fire grate, coal is burnt fully.The present invention can also realize the automatic control of coal gasification and scavenging process.

The object of the present invention is achieved like this: it adopts the body of square-section, the intravital side of machine is a Two-Section Gas Generator, side in Two-Section Gas Generator is provided with airtight water tank and desulfurizing device successively, airtight water tank communicates with the water jacket of Two-Section Gas Generator, stove goes out gas line and from top to bottom passes in airtight water tank, outlet communicates with the inlet of desulfurizing device, the stove that comprises top coal gas square tube and ground coal gas square tube goes out to be provided with double-tube heat exchanger in the gas line, the inlet of double-tube heat exchanger is connected with the gas blower that is arranged on furnace roof, outlet is positioned on the water surface of airtight water tank, in ground coal gas square tube, be provided with the heat-exchange dedusting sleeve pipe, in the coal gas square tube of top, be provided with the bottom and be most advanced and sophisticated cooling tar sleeve pipe, tank gathers dust below ground coal gas square tube, below the coal gas square tube of top, the tar groove is arranged, in airtight water tank, also be provided with the saturated air pipe that runs through the airtight water tank bottom, the inlet of this pipe is on the water surface of airtight water tank, and the bottom is connected with the saturated air endless tube that is positioned at the Two-Section Gas Generator bottom.

The waste heat that the present invention utilizes stove to go out coal gas continues to add the hot water among the hot water jacket and the air that gas blower blasts is heated, and mixes formation temperature with water vapour in the airtight water tank at 50-65 ℃ saturated air, carries out combustion-supporting to the burning of secondary reformer.This combustion-supporting mode of the present invention can make equipment need not be subjected to high temperature and high pressure, so the thermo-efficiency of secondary reformer is improved, and is improved the work-ing life of equipment, while compact construction of the present invention, volume is little, and the production cost of whole plant is reduced.

The fire grate of Two-Section Gas Generator of the present invention is a bilayer structure, wherein one deck is fixed fire grate, but another layer is the horizontal movable type fire grate, but the side of horizontal movable type fire grate is connected with pull bar, one end of pull bar passes to the body of heater outside, is provided with tightness system between pull bar and body of heater.

Adopt the ash discharge of above-mentioned grate structure intermittent type, even gas distribution in stove during not ash discharge, when ash discharge, the pulling pull bar moves horizontally portable fire grate, and ashes evenly fall.Can both perfect combustion with the coal that guarantees each point in the stove, the coal gasification rate is improved.

The present invention also is provided with a plurality of signals collecting, output block and topworks in addition, makes the process of whole gasification and purification realize control automatically.

Description of drawings

The present invention will be further described in detail below in conjunction with embodiment and accompanying drawing thereof.

Fig. 1 is a front of the present invention outside view.

Fig. 2 is the left side view of Fig. 1.

Fig. 3 is the A-A sectional view among Fig. 2.

Fig. 4 is the B-B sectional view among Fig. 3.

Fig. 5 is the C-C sectional view among Fig. 3.

Fig. 6 is the D-D sectional view among Fig. 3.

Fig. 7 is the E-E sectional view among Fig. 3.

Fig. 8 is the F-F sectional view among Fig. 3.

Fig. 9 is the structural representation of the plug in pricker hole tightness system shown in Fig. 1.

1 body among the figure, 2 columns, 3 scale cars, 4 drive cylinder, 5 hang coal bunker, 6 electric hoists, 7 crane crossbeams, 8 connect coal bunker, 9 pneumatic brake plate valves, 10 transition coal bunkers, 11 pillars, 12 tubes of coalingging, 13 level meters, 14 bells, 15 plug in pricker and tightness system, 16 ash discharge cylinders, 17 door-plates, 18 ashes tanks, 19 reset cylinders, 20 supports, 21 water storage tanks, 22 water pipes, 23 tanks that gather dust, 24 desulfurizing device manhole covers, 25 interchanger casings, 26 coal gas output tubes, 27 gate valves, 28 pressure pipes, 29 purified gas diffuse case, 30 diffuse flue, 31 side's flues, 32 raw gass diffuse case, 33 chimneys, 34 gas blowers, 35 electric butterfly valves, 36 blast pipes, 37 supports, 38 thermopairs, 39 thermopairs, 40 thermometers, 41 steel ladders, 42 service platforms, 43 block bar, 44 hot water pumps, 45 water pipes, 46 water-supply pipes, 47 water seal tanks, 48 purified gas diffuse square tube, 49 purified gas water seal skirtboards, 50 float-ball type altitude valves, 51 dividing plates, 52 furnace linings of laying bricks, 53 water jackets, 54 supports, 55 sealed cisterns, 56 advance the coal gas dividing plate, the 57 air bound plates that produce coal, 58 tapered tubes, 59 saturated air endless tubes, 60 door-plates, 61 2 sections gasification installations, 62 2 sections gasification square tubes, 63 top gas outlet tubes, 64 ground coal gas outlet pipes, 65 static fire bars, 66 static fire grate frameworks, 67 movable fire bars, 68 pokes ash hook nail, 69 movable furnace grate frameworks, 70 pull bars, 71 packing casees, 72 steamboats, 73 wheel carriers, 74 dividing plates, 75 closed tanks, 76 top coal gas square tubes, 77 ground coal gas square tubes, 78 top coal gas diffusion pipes, 79 ground coal gas bleeders, 80 raw gas water seal skirtboards, 81 pull bars, 82 packing casees, 83 operating stick, 84 saturated air pipes, 85 saturated air square tubes, 86 coal gas through holes, 87 cooling tar sleeve pipes, 88 heat exchange depositing dust sleeve pipes, 89 tar grooves, 90 tar trough floor, 91 coke discharging oil pipes, 92 water seal skirtboards, 93 low-water level upflow tubes, 94 warm air bleed pipes, 95 hanging boxes, 96 sealed strips, 97 ball journals, 98 times ball-and-sockets, 99 packings, 100 pressure rings, ball-and-socket on 101,102 jackscrews, 103 packing rings, 104 nuts, 105 bolts, 106 balls cut down, 107 tube stubs, 108 unions, 109 packings, 110 drill rods, the A coal bin, the B feeding machine.

Embodiment

See figures.1.and.2, A is a coal bin, B is a feeding machine, body 1 is square type cross section, it is bearing in ground by four columns 2, be provided with water storage tank 21 above the body, it is by pillar 11 supportings, below water storage tank, be installed with crane crossbeam 7, electric hoist 6 is installed on the crossbeam, on body, be provided with the tube 12 of coalingging, coalingging above the tube is to connect coal bunker 8 and transition coal bunker 10, connecing between coal bunker and the transition coal bunker and transition coal bunker and coaling pneumatic brake plate valve 9 all is installed between the tube, 13 level meters that are mounted on the tube of coalingging among the figure, when the coal position in the tube of coalingging is lower than level meter, level meter sends electrical signal, drive cylinder 4 actions, with carry larry 3 that sky hangs coal bunker 5 shift onto feeding machine below, feeding machine begins coal supply, when the weighing cart balance reaches weight, feeding machine stops feed, drives cylinder 4 actions, with larry and hang coal bunker be withdrawn into electric hoist below, electric hoist will hang coal bunker and sling, deliver to connect coal bunker 8 above, and coal sent into connect in the coal bunker, will hang coal bunker then and send original position back to.Open and close the slide valve 9 connect below the coal bunker and the slide valve 9 below the transition coal bunker successively, coal is sent in the tube of coalingging, promptly finish the process of an automatically coal feeding.Among the figure 34 is gas blowers, is installed on the support 37, and support is fixed on the interchanger casing 25.Gas blower passes through blast pipe 36 with air, and blasts in the interchanger casing 25 through the adjusting of electric butterfly valve 35.

With reference to Fig. 3, include three parts in the visible body 1, the one, be arranged in two sections gasification installations 61 in figure left side.The 2nd, be positioned at the airtight water tank 75 of figure middle part, airtight water tank is connected with the water jacket 53 of gasification installation bottom.The 3rd, be arranged in the desulfurizing device on figure right side.Above-mentioned three parts are separated by central dividing plate 51 and 74.The top of body is provided with sealing water groove 55, and the following water seal skirtboard that all has of bell 14, interchanger casing 25 and desulfurizing device manhole cover 24 is placed in the tank, realizes in the body of heater and the sealing between the atmosphere.Be the burner hearth that brick furnace lining 52 surrounds below the support 54, on support 54, hanging two sections upper coarse and lower fine gasification square tubes 62 that four high temperature steel are made, the coal destructive distillation of in square tube, being heated.Square tube upper coarse and lower fine is the scaffold phenomenon that free expansion is caused in order to eliminate coal and to be heated in square tube.Be water jacket 53 below the brick furnace lining, the bottom of water jacket is a grate assembly.Be provided with an ashes tank 18 below the fire grate, the ash discharge in the stove falls into tank, by artificial removing.

With reference to Fig. 3, Fig. 5, Fig. 6 and Fig. 7, in the visible airtight water tank 75 a ground coal gas square tube 77 and two top coal gas square tubes 76 are installed, ground coal gas square tube 77 and top coal gas square tube 76 run through airtight water tank from top to bottom.Top coal gas square tube 76 communicates by in top gas outlet tube 63 and the stove, and ground coal gas square tube 77 then communicates by in ground coal gas outlet pipe 64 and the stove.In ground coal gas square tube, be provided with the heat-exchange dedusting sleeve pipe 88 that is connected with the interchanger casing, hope the cooling tar sleeve pipe 87 that the device casing communicates and in the coal gas square tube of top, be provided with heat exchange, because the tar in the coal gas of top is better mobile, can remove with indirect refrigerative method, so the cooling tar sleeve pipe in the coal gas square tube of top not only can cool off coal gas and add warm air, and can condense tar, it is pointed that awl is made in the lower end of sleeve pipe 87 for this reason, tar groove 89,91st is arranged, the coke discharging oil pipe below square tube 76.Be blown into air in the interchanger casing through after being connected to heat-exchange dedusting sleeve pipe below the interchanger casing and in the coal gas square tube, being heated by gas blower by blast pipe 36 with cooling tar sleeve pipe, by a plurality of warm air bleed pipe 94 ejections, the lower end of warm air bleed pipe 94 is more than the water surface of airtight water tank 75.In airtight water tank, also be provided with simultaneously a plurality of saturated air pipes 84, its inlet is more than the water surface, run through airtight water tank, outlet communicates with saturated air square tube 85 at the water tank bottom plate place, and the saturated air endless tube 59 of saturated air square tube below being installed in fire grate is connected.The air that blasts with after water vapor mixes mutually, is ejected into furnace bottom through saturated air pipe 84, saturated air square tube 85 and saturated air endless tube 59 on airtight water tank, combustion-supporting effect is played in burning of coal.Among Fig. 7 22 and 45 is water pipe, and their upper end is communicated with the water storage tank 21 at body top, and the lower end is communicated with airtight water tank 75.In the lower end of water pipe 22 float-ball type altitude valve 50 is installed,, the water level in the airtight water tank is remained necessarily in order to the water filling in airtight water tank of control water storage tank.A hot water pump 44 is installed on water pipe 45,, the upper strata hot water in the airtight water tank can be extracted in the water storage tank at top so start hot water pump because the lower end of water pipe 45 is positioned at the topmost surface of airtight water tank.Among Fig. 3 39 is thermopairs of measuring saturation air temperature, can control the working order of hot water pump 44 automatically according to its temperature variation that records, adjust the temperature of water in the airtight water tank, change its steam output, reach the temperature of change saturated air and the purpose of water content.When the temperature of measuring saturated air when thermopair exceeds processing requirement, automatically start hot water pump 44 upper strata hot water is drawn to water storage tank 21, and in airtight water tank 75, replenish cold water automatically, water temperature is descended by water pipe 22, reduce steam output, the temperature of saturated air is reduced.Can see by arrow among the figure, ground coal gas is flowed out by two sections vapor lamps 62, through ground coal gas outlet pipe 64 and ground coal gas square tube 77, the space enlargement of pipeline, and the obstruction of sleeve pipe 88 arranged, grit landing in the coal gas is gathered dust in the tank 23, top coal gas is flowed out by the slit of coalingging between tube 12 and the sealed cistern 55 in top, successively through top gas outlet tube 63, top coal gas square tube 76 enters into the upper space of the tank 23 that gathers dust, tar in the coal gas of top is subjected to cooling off tar sleeve pipe 87 through top coal gas square tube 76 time cooling, accumulate in the tar groove 89, discharge by coke discharging oil pipe 91.Ground coal gas mixes mutually with the upper space of top coal gas at the tank 23 that gathers dust, and then through the side plate of water seal skirtboard 92 and the slit between the tank water surface of gathering dust, enters into the bottom of desulfurizing device from the coal gas through hole 86 on right side, dividing plate 74 bottom.

32 is that raw gas diffuses case among Fig. 5, in case, be provided with raw gas water seal skirtboard 80, form water seal with top, ground

coal gas bleeder

78,79, when needs diffuse raw gas, hold operating stick 83, mention pull bar 81, the water seal skirtboard is raised thereupon, and the thick top coal gas that diffuses enters to diffuse in the case through ground coal gas bleeder 79 through top coal gas diffusion pipe 78, thick ground coal gas and mixes after the side's of finishing flue 31 enters atmosphere by chimney 33.82 are pull bars and diffuse dynamic seal packing case between the case among the figure.

As shown in Figure 4,, and door-plate 60 is installed, is connected with bolt between door-plate 60 and the casing in the furnace shell upper shed of grate assembly downside.Ashes coking above movable furnace grate is following time not, opens fire door, and insertion stove hook passes the processing of fire grate slit and gets final product.Grate assembly of the present invention is made up of static fire grate and movable furnace grate two portions.Static fire bars 65 is arranged at wherein static fire grate framework 66 bottoms, on the base plate of water jacket 53, be fixed with wheel carrier 73, and steamboat 72 is housed on wheel carrier, static fire grate framework 66 is placed on the steamboat, and the movable furnace grate framework 69 that is fixed with movable fire bars 67 place static fire grate framework 66 above, and can on static fire grate framework, move horizontally.Be fixed with poke ash nail hook 68 above the movable fire bars 67.Be positioned on the body 1 at fire grate place and have mouth, and be equipped with body between be screwed the drawer type door-plate 17 that is connected, pull bar 70 passes door-plate, one end passes the rigid grate framework and is connected with the movable furnace grate framework in body, the other end is connected with reset cylinder 19 outside body, ash discharge cylinder 16 is connected mutually with reset cylinder, and together is installed in above the support 20.In the time of not ash discharge, movable fire bars stops at the place, slit of static fire bars, and at this moment the slit is minimum between fire bars.When needing ash discharge, drive movable furnace grate by the ash discharge cylinder by pull bar and move horizontally, when movable fire bars moves to when overlapping with static fire bars position, the fire bars spacing is a maximum.Make the movable furnace grate to-and-fro movement, can realize even ash discharge.For the convenience of keeping in repair, static fire grate framework 66 is fixed together with door-plate 17, when needing repairing, pull out door-plate, whole static fire grate and movable furnace grate together can be pulled out.Between pull bar and the door-plate by packing case 71 movable sealings.Coal from the effusive charge level of ground coal gas to fire grate stove section is divided into gasification layer, zone of combustion and grieshoch from top to bottom, and the temperature of zone of combustion is the highest.Because movable furnace grate adopts the intermittent type ash discharge, in not ash discharge, because burning makes on the zone of combustion and moves, the attenuation of gasification layer raises the temperature in the stove.And during ash discharge, zone of combustion moves down, and the gasification layer reduces the temperature in the stove because the coal that has two sections gasification square tubes 62 to flow down replenishes and thickening.Therefore, in the stove centre temperature thermocouple 38 is set, when the temperature that records surpasses the upper temperature limit of setting, just send electrical signal and make the action of ash discharge cylinder, carry out ash discharge, and prescribe a time limit, send signal and stop ash discharge when the temperature value of measuring is lower than the following of design temperature, keep interior each coal seam of stove stable, realize the automatic control of ash discharge.Whether four jiaos of places in stove respectively are provided with a thermometer 40, take place unusually in order to the temperature of measuring four jiaos of places.If the temperature value that some thermometers are measured is undesired, bonding, the scaffold in the two sections interior generation of gasification square tubes coal seams that this thermometer closes on is described or cavitation occurs.For handling above-mentioned phenomenon, the present invention respectively has a plug in pricker hole on four jiaos and four the two sections corresponding positions of square tube of gasifying of bell 14, tapered tube 58 is housed, and plug in pricker and tightness system 15 thereof are housed on tapered tube.

By shown in Figure 9, on tapered tube, be screwed ball-and-socket 98 and last ball-and-socket 101 down, ball journal 97 is housed in the ball-and-socket, sealed packing 99 is housed between ball-and-socket and ball journal.108 is unions among the figure, be fixedly connected with tube stub respectively in the upper end of ball journal and the lower end of union, between two tube stubs ball be installed and cut down 106, drill rod 110 passes union, ball cuts down and ball journal, in the insertion body of heater, sealed packing 109 is housed in the union upper end.When phenomenons such as the above-mentioned bonding of appearance, scaffold in two sections gasification square tubes 62, can dredge operation with drill rod.If when not plugging in the pricker operation, union is turned on, take out drill rod, packing case and the upper half union, close ball simultaneously and cut down.If loading onto sheet glass in the half union down, open ball to cut down, can also seal and see fire.

The concrete structure of desulfurizing device such as Fig. 3 and shown in Figure 8.What the present invention adopted is the dry method sulphur removal.It is formed by being suspended on manhole cover 24 following a string hanging boxes 95 of filling sulfur elimination.Top and the following hook that all has of hanging box so that a plurality of hanging boxes are hung into successively a string, and is filled sulfur elimination in each hanging box.The bottom surface of hanging box is a screen cloth, can pass through coal gas.Hanging box be installed in as shown in Fig. 3 and Fig. 8 by body 1 and the air bound plate 74 and advance coal gas dividing plate 56 and the air bound plate 57 that produces coal is made the square space of a sealing of producing coal, advance coal gas dividing plate 56 and produce coal to be shaped on alternately upwards coal gas access way above the air bound plate 57.Seal with fibrefelt sealed strip 96 between each dividing plate and the hanging box.Cut down 27 control through the later purified gas of sulphur removal by lock, by 26 outputs of coal gas output tube.On the coal gas output tube, be provided with pressure pipe 28, connect tensimeter, in order to measure the pressure of output coal gas.Also be provided with explosion-proof water seal tank 47 in the bottom of desulfurizing device.Be provided with the purified gas dispensing device on the top of desulfurizing device, it diffuses case 29, packing case 82, operating stick 83 by purified gas bulk storage square tube 48, purified gas water seal skirtboard 49, pull bar 81, purified gas and forms.The purified gas that diffuses via diffuse flue 30, square flue 31 (Fig. 5), after chimney 33 discharge.This device is owing to be to be inserted by top, and manhole cover is the method and extraneous sealing that adopts water seal, without knockout screw, so can with electric hoist it be hung out easily, carries out the replacing of sulfur elimination during loading and unloading.

35 is the electronic dish valves that are installed between gas blower and the blast pipe among the figure.The 46th, the upper hose of water storage tank.The 90th, the tar trough floor.The 93rd, the low-water level upflow tube, it and water seal skirtboard 92 cooperatively interact, realize closing and connecting of gas flue, during higher when the water level in the tank 23 that gathers dust, as to surpass water seal skirtboard 92 lower rim, gas flue is closed, and can carry out operations such as raw gas diffuses, when water level is lower than the lower rim of water seal skirtboard, gas flue is opened, and can normally receive coal gas.

Claims

1, a kind of gasification of coal machine, the body that it is characterized in that its employing square-section, the intravital side of machine is a Two-Section Gas Generator, side in Two-Section Gas Generator is provided with airtight water tank and desulfurizing device successively, airtight water tank communicates with the water jacket of Two-Section Gas Generator, stove goes out gas line and from top to bottom passes in airtight water tank, outlet communicates with the inlet of desulfurizing device, the stove that comprises top coal gas square tube and ground coal gas square tube goes out to be provided with double-tube heat exchanger in the gas line, the inlet of double-tube heat exchanger is connected with the gas blower that is arranged on furnace roof, outlet is positioned on the water surface of airtight water tank, in ground coal gas square tube, be provided with the heat-exchange dedusting sleeve pipe, in the coal gas square tube of top, be provided with the bottom and be most advanced and sophisticated cooling tar sleeve pipe, tank gathers dust below ground coal gas square tube, below the coal gas square tube of top, the tar groove is arranged, in airtight water tank, also be provided with the saturated air pipe that runs through the airtight water tank bottom, the inlet of this pipe is on the water surface of airtight water tank, and the bottom is connected with the saturated air endless tube that is positioned at the Two-Section Gas Generator bottom.

2, according to the said gasification of coal machine of claim 1, it is characterized in that fire grate is a bilayer structure, wherein one deck is fixed fire grate, another layer is movable fire grate, the side of movable fire grate is connected with pull bar, and an end of pull bar passes to the body of heater outside, is provided with tightness system between pull bar and body of heater.

3, according to the said gasification of coal machine of claim 2, it is characterized in that the body of heater side is provided with door, both sides are provided with two row's steamboats in the body of heater, fixed fire grate is placed in above the steamboat, movable fire grate be placed in rigid grate above, the framework that pull bar passes fire door and rigid grate is connected with the framework of movable furnace grate, and the other end of pull bar is connected with cylinder rod in the furnace shell outside.

4, according to the said gasification of coal machine of claim 1, a water storage tank is arranged at the top that it is characterized in that casing, water storage tank is connected with the lower layer of water of airtight water tank by a water pipe, and on water pipe, be provided with the float-ball type altitude valve, water storage tank is provided with a water pipe simultaneously and is connected with the upper water of airtight water tank, and on water pipe, be provided with a water pump, on the saturated air bleed pipe, be provided with temperature thermocouple simultaneously.

5, according to the said gasification of coal machine of claim 1, it is characterized in that desulfurizing device comprises that a plurality of vertical hangings become a string hanging box, the hanging box base plate is a screen cloth, and sulfur elimination is housed in the hanging box, be the dividing plate of sealing around the hanging box, wherein have alternately upwards coal gas on the dividing plate on two sides and import and export.

6, according to the said fuel gas producing plant of claim 1, it is characterized in that the top of body is provided with sealed cistern, water seal cover plate and atmospheric sealing are all adopted in the top of Two-Section Gas Generator, airtight water tank and desulfurizing device.

7,, it is characterized in that on the gasification square tube of Two-Section Gas Generator, temperature thermocouple being housed according to the said gasification of coal machine of claim 1.

8,, it is characterized in that thermometer being housed respectively at four jiaos of places of Two-Section Gas Generator according to the said gasification of coal machine of claim 1.

9, according to the said gasification of coal machine of claim 1, it is characterized in that being provided with the crane crossbeam at the top of body, and crane is housed on crossbeam, the top of body is provided with and connects coal bunker.