CN2032619U

CN2032619U - Coal gas generator

Info

Publication number: CN2032619U
Application number: CN88212653U
Authority: CN
Inventors: 谢志平; 周小平
Original assignee: LENGSHUIJIANG ALKALI PLANT HUNAN PROV
Current assignee: LENGSHUIJIANG ALKALI PLANT HUNAN PROV
Priority date: 1988-05-27
Filing date: 1988-05-27
Publication date: 1989-02-15

Abstract

The utility model relates to an industrial coal gas generating furnace, changing the water-cooled jacket out of the furnace body in the prior art into an air jacket. Thus, the utility model can avoid that coal slag hangs on the furnace at high temperatures, making the coal adjacent to the inner wall of the furnace body be combusted sufficiently, providing the preheated air for the furnace body, and reducing the blowing time; thus, the coal consumption is reduced, increasing the production capacity of the coal gas. The utility model is additionally provided with a temperature measuring equipment measuring the temperature of the gasifying layer of the coal and the wall temperature of the inside layer of the air jacket in the gas generating furnace to be convenient for the operation. The coal gas generating furnace adopting a hydraulic driving device comprising an oil pump, a connecting rod, a ratchet wheel and a main shaft is operated under the environment which is isolated with the coal ash, reducing the operation accident, and saving the maintenance cost.

Description

Coal gas generator

The utility model relates to a kind of industrial coal gas generation equipment.

At present, the producer gas generator of the industrial use of China all is the fifties end type of furnaces to the early sixties design.The water jacket of the body of heater outside of this type of furnace originally is to be used to prevent that the intravital coal quarrel of stove from hanging stove and the structure taked, but also brings a problem thereupon, exactly near low can not fully burning of coal Yin Wendu of water jacket, along with the stove quarrel is discharged together, is fallen by expense in vain; Be normal temperature owing to going into the stove air in addition, cause blow-time long, relatively reduced the system gas time, not only influenced the throughput of coal gas in the unit time, and increased coal consumption, owing to above-mentioned two kinds of reasons, make that the coal consumption of existing producer gas generator is quite high, calculate every production 3400M by theoretical ³Semi-water gas, only need the 844kg standard coal, and present average national level is about 1500kg, the producer gas generator that uses also has a shortcoming now, and the key part that is exactly its mechanical driving part is to be in the environment that coal ash is arranged to move, and driving part is subject to the coal ash aqueous vapor and corrodes and the fouling that causes getting rusty, thereby movement parts influences works better because of frictional dissipation increases, operational trouble is a lot of, needs more transducer set transmission mechanism about every half a year, is worth tens thousand of units.In addition, because the coal gasification layer of the existing type of furnace does not have temperature measuring equipment, operator can only roughly judge with the uplink and downlink gas temperature, so bring difficulty to normal running work, are difficult to accomplish high yield, low consumption.

In view of the problems referred to above of existing producer gas generator, the purpose of this utility model is to provide a kind of reduction coal consumption, improves gas yield, reduces mechanical driving part fault, easy to operate producer gas generator.

The utility model takes following structure to realize.Referring to Fig. 1, the air jacket (11) of a cylinder shape is made in the outside of body of heater (10), to replace the water cooling in prior technology cover.The outer top of air jacket has inlet of cold air and inlet of cold air pipe (8) is housed, and outer bottom has hot air outlet and hot gas outlet duct (13) is housed, warm air (13) come out through exterior line and threeway (64) and with body of heater in be communicated with.During producer gas generator work, freezing air both can make the temperature of the coal of close inboard wall of furnace body reduce and unlikely formation coal quarrel extension stove after entering air jacket, but relatively adopting water jacket not cause again near the temperature of the coal of inboard wall of furnace body crosses low and can not fully burn, thereby make that system temperature degree is suitable, coal near inboard wall of furnace body can fully burn, and increases throughput.Second effect of air jacket then is that the stove air is gone in preheating, when freezing air enters from air jacket top and when entering in the stove at last, air themperature improves, can reduce blow-time (normal temperature air is gone into stove relatively), increase the system gas time, promptly increase throughput.At the outer field middle part of air jacket (11), have 20 thermometer holes altogether, temperature tube (22)～(41) are housed respectively and penetrate air jacket (11), 20 temperature tubes are divided into five layers, and four every layer, becoming to be separated by 90 ° is distributed in the outer field garden of air jacket (11) on week, temperature tube (22)～(41) but in level insert thermopair, the temperature of the coal of the gentle close chuck of energy measurement chuck inner layer wall so that the operator regulates the air capacity that enters in the chuck, reaches optimum operating temperature.The outer middle part of air jacket (11) also has three sight vanes (9), so that check the air jacket inner case.

Referring to Fig. 2 and Fig. 3, mechanical driving part of the present utility model is by oil cylinder (81), piston rod (80), connecting rod (75), ring flat-plate (58), ratchet (56), support ring (59) and main shaft (61) are formed, and ratchet and support ring are immersed in the fuel tank (57).Its principle of work is, oil pump (80) drivening rod (75) moves back and forth, connecting rod (75) is by ring flat-plate (58), reciprocally promote ratchet (56) back and forth, support ring (59) is housed below the ratchet, main shaft (61) links to each other with ratchet (56) by bolt and nut (66), the rotation of ratchet (56) drives the rotation of main shaft (61), and ash-pan (43) links to each other with main shaft (61) by bolt and nut (48), the rotation of main shaft (61) has just driven the rotation of ash-pan (43), ash-pan (43) links to each other with fire grate by bolt and nut (14), thereby the rotation of ash-pan drives the rotation of fire grate again, constantly the broken also rake of ash quarrel in the stove is gone in ash-pan (43), fall into ash quarrel case (20) at last again.This transmission mechanism adopts hydrostatic transmission, relatively the geartransmission of prior art is steadily reliable, particularly be oil cylinder, connecting rod, ring flat-plate, ratchet, main shaft all with the isolated good environment of coal ash in work, ratchet and support ring are immersed in the machinery oil, so the operational trouble of driving part is few.Main shaft (61) is made tubular shaft, in protective sleeve (49) is arranged, insulating layer material (50) in addition between main shaft and protective sleeve, air and steam can enter uniform distribution in the stove by protective sleeve, and coal can fully be burnt, and improve factor of created gase.

The utility model has also designed the temperature measuring equipment of measuring coal gasification layer temperature in the body of heater; (3) among Fig. 1; (5) and (16) be the thermometer protective sleeve; wherein (3); (5) extend in the stove from furnace roof (2); the lower end is from the about 2m of furnace roof; (16) extend upwardly to the center of fire grate (12) from mechanical driving part (15) lower end; exceed the about 50mm in fire grate top; thermometer protective sleeve (3); (5) and (16) all have outside water jacket and pass to water coolant; prevent that protective sleeve from being burnt out, all can insert thermopair in three thermometer protective sleeves and link to each other with external millivoltmeter.

Fig. 1 is the utility model overall construction drawing;

Fig. 2 is the utility model furnace bottom parts and mechanical driving part structure iron;

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

Among the figure, 1, furnace lining; 2, furnace roof; 3, thermometer protective sleeve; 4, the mouth of delivering coal; 5, thermometer protective sleeve; 6, bolt and nut; 7, up gas exit; 8, inlet of cold air pipe; 9, sight vane; 10, body of heater; 11, air jacket; 12, fire grate; 13, hot air outlet; 14, bolt and nut; 15, mechanical driving part; 16, thermometer protective sleeve; 17, thermometer boss; 18, descending gas exit; 19, dust inlet; 2, ash quarrel case; 21, chassis; 22～41, temperature tube; 42, grate; 43, ash-pan; 44, gland bolt; 45, gland; 46, filler; 47, lower shaft cover; 48, bolt and nut; 49, protective sleeve; 50, thermofin; 51, bolt and nut; 52, bolt and nut; 53, bolt and nut; 54, ash rake; 55, oil ga(u)ge; 56, ratchet; 57, fuel tank; 58, ring flat-plate; 59, support ring; 60, lining; 61, main shaft; 62, packing gland; 63, filler; 64, threeway; 65, following drain pan; 66, bolt and nut; 67, gland; 68, blind plate; 69, bolt and nut; 70, bearing pin; 71, lining; 72, ratchet pawl; 73, visor; 74, cover plate; 75, connecting rod; 76, crosshead pin; 77, pinblock; 78, garden nut; 79, bolt and nut; 80, piston rod; 81, oil cylinder.

Make this producer gas generator, body of heater is 1Cr25Ni20SiS or other heat-resistance stainless steel near the used material of air jacket (11), and the outer material that uses of air jacket is A ₃Steel, temperature tube (22)～(41) adopt corundum to make, thermometer protective sleeve (3), (5) and the outer A that adopts of the water jacket of (16) ₃Steel, internal layer adopts 1Cr18Ni9Ti, and the material of main shaft (61) and ring flat-plate (58) adopts A ₃Steel, ratchet (56) and support ring (59) then adopt ZG45 and HT20-40 material respectively.

The utility model is owing to adopted air jacket to replace the water cooling in prior technology cover, and increased and measured coal gasification layer temperature in the body of heater and near the temperature measuring equipment of the temperature of the coal of air jacket, thereby reduced coal consumption, increased the gas production ability, from present every production 3400M ³Coal gas needs standard coal 1500kg to reduce to 1150kg, and throughput can be by present per hour production 2800M with regard to the producer gas generator of furnace diameter φ 2260mm ³Coal gas increases to and per hour produces 3600M ³Coal gas.Owing to had temperature measuring equipment, operative employee that foundation has accurately been arranged, can in time operate feeding and control reaction in furnace, greatly facilitate operation.Mechanical driving part is owing to cancelled the drive method in original step-down gear, worm gear, worm screw and big or small tooth river, replace the transmission system of isolated oil pump, connecting rod, ring flat-plate, ratchet and main shaft of running environment and coal ash, thereby stable drive is reliable, parts are difficult for rust corrosion, operational trouble significantly reduces, annual overhaul from prior art, repaiied in once in three months, be extended for an overhaul in two to three years, repair half a year in annually, thereby improved the yearly capacity of separate unit producer gas generator, saved maintenance cost greatly.

Claims

1, a kind of producer gas generator that comprises body of heater (10), fire grate (12), furnace roof (2) and mechanical driving part (15) is characterized in that:

The outside of a, described body of heater (10) has the air jacket (11) of cylinder shape;

B, described mechanical driving part (15) are made up of oil cylinder (81), piston rod (80), connecting rod (75), ring flat-plate (58), ratchet (56), support ring (59) and main shaft (61), ratchet and support ring are immersed in the fuel tank (57), main shaft is made tubular shaft, its liner has insulating layer material (50) with protective sleeve (49) between main shaft and the protective sleeve;

C, the measuring apparatus of measuring the interior coal gasification layer of described body of heater (10) temperature is housed.

2, producer gas generator according to claim 1 regulation, the outer top that it is characterized in that described air jacket (11) has inlet of cold air and inlet of cold air pipe (8) is housed, outer middle part has three sight vanes (9), outer bottom has hot gas outlet duct (13), the outer middle part of air jacket (11) has 20 thermometer holes altogether, temperature tube (22)～(41) are housed respectively, and penetrate air jacket (11), 20 temperature tubes are divided into five layers, four every layer, become to be separated by 90 ° and be distributed in the outer garden of air jacket (11) on week, can horizontally mounted thermopair in the temperature tube, air jacket (11) bottom through exterior line and threeway (64) and with body of heater (10) internal communication so that in the air jacket in the air admission stove of preheating.

3; according to claim 1; the producer gas generator of 2 regulations; the temperature measuring equipment that it is characterized in that the interior coal gasification layer of described measurement body of heater (10) temperature comprises thermometer protective sleeve (3); (5) with (16) and interior thermopair and the external millivoltmeter of installing of thermometer; thermometer protective sleeve (3) wherein; (5) extend in the stove from furnace roof (2); its lower end is from the about 2m of furnace roof; thermometer protective sleeve (16) extends upwardly to fire grate (12) center from mechanical driving part (16) lower end; exceed the about 50mm in fire grate top, thermometer protective sleeve (3); (5) all have outside water jacket with (16) and pass to water coolant.