CN2734758Y

CN2734758Y - Parallel type coal gasifying stove

Info

Publication number: CN2734758Y
Application number: CN 200420091880
Authority: CN
Inventors: 刘工勤
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-30
Filing date: 2004-09-30
Publication date: 2005-10-19
Anticipated expiration: 2014-09-30

Abstract

The utility model relates to a double-stove parallel type coal gasifying stove, comprising a burner and a stove body provided with a jacket. The utility model is characterized in that the coal gasifying stove connected with a coal gas eject-combustion system is composed of two stove bodies; a steam pipe of the coal gasifying stove is connected with the stove body jacket; an ejector nozzle of the steam pipe is arranged at a top nozzle of a hot air main pipe; one end of the gas pipe is connected with the top part of the stove body, with the lower end connected with a dusting water tank. The dusting water tank is connected with an injector; the hot air main pipe is arranged on the external jacket of the gas pipe; one end of a hot air elbowed pipe is connected with the hot air main pipe; the other end is connected with a suction inlet of a high pressure blower; an air inlet elbowed pipe is connected with the bottom of the gasifying stove chamber via the dusting water tank. The utility model is composed of two parallel stove bodies, and is connected with a coal gas eject-combustion system, and the utility model adopts the mode of alternately feeding of coal, and the mixed hot coal gas can be continuously produced. The utility model makes full use of coal resource, uses coal instead of oil, reduces contamination to reach the goal of continuously gas-producing.

Description

Parallel coal gasifier

Technical field

The utility model belongs to the coal burning equipment technical field, specifically is a kind of twin furnace body coal gasification furnace that uses in parallel.

Background technology

In the prior art, the structure of coal gasification furnace mostly enters in the body of heater by water vapour and the air mixed that produces in the body of heater, generates CO, H under certain condition ₂And CH ₄Deng inflammable gas.As the disclosed patent No. of Chinese patent is that a kind of self-balanced coal continuous gasification furnace of 02135743.9 also designs by this structural principle, though realized coal gasification furnace successive operation purpose, but structure is comparatively complicated, vapour generator complex structure in the burner hearth, vapour pipe separates setting with gas pipe, thermal transition efficient is subjected to certain limitation, and gas yield is lower.

Summary of the invention

The utility model is at the vapour generator complex structure that exists in the prior art, air feed continuously during coal, vapour pipe separates the drawback that is provided with gas pipe, provide a kind of by the combination in parallel of a plurality of at least two bodies of heater, the coal gasification furnace of a shared cover spray combustion airing system.

The utility model is realized by following scheme, parallel coal gasifier, comprise the body of heater that is provided with water jacket, vapour pipe, gas pipe, it is characterized in that forming coal gasification furnace by two bodies of heater at least, link to each other with a cover coal gas jet burning system, the vapour pipe of coal gasification furnace communicates with furnace water jacket, the spout of vapour pipe is positioned at the place suitable for reading that hot blast is responsible for, one end of gas pipe communicates with the upper top of body of heater, the lower end links to each other with the dedusting water tank, the dedusting water tank links to each other with injector, and gas pipe is set with hot blast outward and is responsible for, and blind flange is equipped with in the lower end that hot blast is responsible for, one end of hot blast bend pipe is responsible for hot blast and is communicated, the other end links to each other with the suction port of high pressure blower, and the delivery port of high pressure blower links to each other with the air intake bend pipe, and the air intake bend pipe communicates with the gasification hearth bottom.

The utility model is made up of two bodies of heater, links to each other with a cover coal gas jet burning system, adopts the alternately mode of coal, and mixture heat coal gas is output continuously just, makes full use of coal resources, replace oil with coal reduces and pollutes, and has reached uninterruptedly, the purpose of continuous aerogenesis.

Hot blast of the present utility model is responsible for and is sleeved on outside the gas pipe, make the steam that produces in the body of heater directly spray on the gas pipe, the waste heat that makes full use of on the gas pipe makes water vapor keep higher temperature, after the air mixed that enters in the hot blast person in charge, send into fuel bed in the burner hearth by high pressure blower from furnace bottom, carry out gasification reaction, generate coal gas.

The delivery port of injector described in the utility model is integrated, and the middle part is provided with dividing plate, and when the gas ejector of this structure formation can solve existing separate unit body of heater coal gasification furnace operation, coal, coal gas was interrupted, and needed igniting again, with serious pollution drawback.When the coal producer of two bodies of heater compositions moves simultaneously, when wherein need are opened the coal filling hole coal, pressure in the burner hearth is on a declining curve, coal filling hole can overflow bituminous coal gas, at this moment, and another coal gasification furnace, by another gas pipe in the injector, form negative pressure in the burner hearth with the need coal, this negative pressure had both suppressed the bituminous coal gas that may overflow because the burner hearth internal drop is low, had guaranteed the stable output of qualified coal gas in another body of heater again.

The utlity model has following advantage and effect: 1, two in parallel uses of coal gasification furnace, adopt alternately coal-adding type, can make the continuous output of mixture heat coal gas; 2, at the gas exit place of two coal gasification furnaces injector is installed, bituminous coal gas outwards overflows when having prevented coal, contaminate environment; 3, efficient energy-saving, operate steadily, two units move simultaneously, do not need to light a fire again, coal gas is uninterrupted; 4, safe and reliable, simple to operate, economical and practical; 5, vaporization rate height, hard coal ≈ 3.5Nm ³/ kg, bituminous coal ≈ 3.3～3.7Nm ³/ kg; 6, applied widely, use in the place that can be used for Heating temperature≤1200 ℃, as Industrial Stoves, and industries such as thermal treatment, boiler, chemical industry, building materials, hotblast stove, drying shed non-ferrous metal metallurgy, agricultural byproducts drying; 7, the mixed gas quality height of output, thermal value range is at 5000～5500KJ/Nm ³, all other technical indicators, quality product, environment monitoring all reach relevant national standard after tested.

Description of drawings

Fig. 1 is the main TV structure figure of parallel coal gasifier

Fig. 2 is the plan structure figure of Fig. 1

Fig. 3 is the left view of Fig. 1

Among the figure: 1-wash water valve 2-base 3-fire grate axle 4-firing door 5-vapour pipe 6-gas pipe 7-body of heater 8-floating ball tank 9-air intake bend pipe 10-adjusting valve 11-high pressure blower 12-hot blast bend pipe 13-hot blast is responsible for 14-dedusting water tank 15-ejecting port 16-injector 17-water jacket 18-blind flange

Embodiment

In conjunction with the accompanying drawings embodiment is further described, present embodiment is to be used for illustrating of the present utility model, rather than the utility model is carried out any restriction.

Parallel coal gasifier, by the body of heater 7 that is provided with water jacket, wash water valve 1, floating ball tank 8, vapour pipe 5, formations such as gas pipe 6 and high pressure blower 11, producer gas generator is composed in parallel by two bodies of heater 7, a shared cover coal gas jet burning system, (the coal gas jet burning system is by gas line, gas burner and air distribution blower fan, the air distribution valve constitutes, gas burner is a kind of device that is used for coal gas ignition, apply for a patent by the contriver), the vapour pipe 5 of producer gas generator communicates with furnace water jacket 17, the spout of vapour pipe 5 is positioned at hot blast and is responsible for 13 place suitable for reading, one end of gas pipe 6 communicates with the upper top of body of heater 7, the lower end links to each other with dedusting water tank 14, dedusting water tank 14 links to each other with injector 16, the input aperture of injector 16 connects with the ejecting port 15 usefulness ring flanges of two coal gasification furnaces respectively, the delivery port of injector 16 is integrated, and the middle part is provided with dividing plate, and links to each other with the gas line of gas burner.

The gas pipe 6 outer hot blasts that are set with are responsible for 13 in the utility model, blind flange 18 is equipped with in the hot blast person in charge 13 lower end, one end of hot blast bend pipe 12 is responsible for 13 with hot blast and is communicated, the other end links to each other with the suction port of high pressure blower 11, the delivery port of high pressure blower 11 links to each other with air intake bend pipe 9, and air intake bend pipe 9 communicates with the gasification hearth bottom.Coal gas comes together in injector after cleaner dedusting, desulfurization, deliver to burner port by pipeline and light, and produces heat, uses as the heat supply source of the gas.

Claims

1, a kind of parallel coal gasifier, include the body of heater that is provided with water jacket, vapour pipe, gas pipe, it is characterized in that forming coal gasification furnace by two bodies of heater at least, link to each other with a cover coal gas jet burning system, the vapour pipe of coal gasification furnace (5) communicates with furnace water jacket (17), the spout of vapour pipe (5) is positioned at the place suitable for reading that hot blast is responsible for (13), one end of gas pipe (6) communicates with the upper top of body of heater (7), the lower end links to each other with dedusting water tank (14), dedusting water tank (14) links to each other with injector (16), the outer hot blast that is with of gas pipe (6) is responsible for (13), blind flange (18) is equipped with in the hot blast person in charge's (13) lower end, one end of hot blast bend pipe (12) is responsible for (13) with hot blast and is communicated, the other end links to each other with the suction port of high pressure blower (11), the delivery port of high pressure blower (11) links to each other with air intake bend pipe (9), and air intake bend pipe (9) communicates with the gasification hearth bottom.

2, parallel coal gasifier according to claim 1 is characterized in that the delivery port of injector (16) is integrated, and the middle part is provided with dividing plate.