CN201080472Y - Water-gas producer - Google Patents

Abstract

The water gas generator belongs to the kiln technology category. It is composed of a gasifier and a combustion furnace. It is characterized in that it also includes a safety valve, a water-sealed coal charging container, a water-cooled burner, a non-powered slag discharge grate, and a waste heat recovery device. And the hot air thermostat, the utility model makes the coal burn fully, saves energy, greatly reduces the emission of dust and smoke, carbon monoxide, sulfide and other harmful gases, and the temperature of the combustion furnace can be controlled, and the furnace temperature can reach 1600 ° C, which is actually a kind of energy saving Environmentally friendly products.

Description

water gas generator

technical field

The utility model relates to a water gas generator, which belongs to the technical category of furnaces and kilns.

Background technique

my country is a big coal country, and most of the kilns in small factories and enterprises use coal as fuel, such as the iron-burning furnaces in small forging factories. Usually, the direct combustion of coal will produce a large amount of dust and smoke, and in addition, harmful gases such as carbon monoxide and sulfide will be discharged into the space, which will cause great pollution to the environment. More importantly, the thermal efficiency of direct coal combustion is low and serious waste energy, thus prompting people to switch to water gas generators. Compared with the direct-fired furnace, the water gas generator has been greatly improved, but due to the unreasonable structure of the furnace body and related furnace components, the gasification conversion of coal is not complete, and the thermal efficiency is not too high, so there is great room for improvement. , especially for small water gas generators, the gas supply combustion temperature is not high. For example, the temperature of the iron-burning furnace for water gas generator gas supply combustion with a furnace diameter of less than one meter is less than 1000 degrees, so the effect of saving coal is not significant, and there are also emissions that do not meet standards and environmental pollution. question.

Contents of the invention

In order to overcome the defects of the prior art, the utility model provides a water gas generator with reasonable design, energy saving and environmental protection.

A water gas generator, which consists of a gasifier, a combustion furnace, a feeding mechanism, a coal feeding container, a drilling hole, a gas outlet, a grate, a fan, a slag outlet, and a decompression gas box. The gasifier is a set Cylindrical, with water in the sleeve layer, the water communicates with the decompression gas box on the side of the gasifier through small holes; the coal charging container is located at the top center of the gasifier, and can accommodate the coal delivered by the feeding mechanism and add it into the gasifier; the drilling hole is located at the top peripheral part of the gasifier, the slag outlet is located at the middle and lower part of the gasifier, the grate is located below the slag outlet in the gasifier, and the fan is located at the gasifier. The outside of the lower part of the furnace grate provides air and water vapor for the gasification furnace; the water gas is output from the gas outlet on the upper side of the gasification furnace to the burner in the combustion furnace. It is characterized in that the drilling hole is cylindrical. There is a safety valve on it to prevent the danger of backfire explosion caused by improper operation of the gasifier; the coal charging container is a water-sealed structure, which can prevent the coal dust from spreading during the coal charging process; the burner is a water-cooled burner, The burner can withstand high temperature; the grate is a non-powered slagging grate, which is composed of moving and static grate teeth, which are fixed in parallel on the rotating shaft, and one end of the rotating shaft extends out of the gasifier and connects with the rotating handle; the combustion furnace A waste heat recovery device is fixed above the front and rear outlets, and the waste heat recovery device transports the hot air collected with waste heat to the hot air thermostat, which is fixed on the water-cooled burner to adjust the combustion temperature of the combustion furnace.

Because the utility model has a safety valve, it avoids the loss of heat and effective gas and the diffusion of dust, solves the problem of backfire explosion caused by improper operation of the gasifier, and avoids danger; the coal charging container with water-sealed structure It can prevent the diffusion of coal dust and make the coal distribution in the gasifier even; the water-cooled burner can make the burner work normally at high temperature for a long time without damage. For example, ordinary burners can only be used for one to three months. , the water-cooled burner can be used for ten years; the unpowered slag discharge grate does not use power, so it can save energy, and the slag discharge is smooth and convenient; the use of waste heat recovery device and hot air thermostat can effectively recover the waste heat of the combustion furnace , the combustion temperature of the combustion furnace can be adjusted through the hot air thermostat.

The utility model is novel in design, fully burns coal, saves energy, greatly reduces the emission of harmful gases such as dust and smoke, carbon monoxide and sulfide, and the temperature of the combustion furnace is controllable. It is an energy-saving and environment-friendly product. In particular, the combustion temperature of a small water gas generator with a diameter of less than one meter can reach 1600°C.

Description of drawings

Fig. 1 is a schematic diagram of the utility model.

Among them: 1. Gasifier, 2. Combustion furnace, 3. Feeding mechanism, 4. Coal feeding container, 5. Drilling holes, 6. Gas outlet, 7. Grate, 8. Fan, 9. Slag outlet , 10, decompression gas box, 11, burner, 12, feeding barrel, 13, motor.

Fig. 2 is a schematic diagram of the utility model safety valve.

Wherein: 14, round cover, 15, inner ring, 16, outer ring, 17, annular groove.

Fig. 3 is a schematic diagram of the water-cooled burner of the present invention.

Wherein: 18, air intake pipe, 19, air outlet pipe, 20, closed cavity, 21, water inlet pipe, 22, water outlet pipe, 23, water.

Fig. 4 is a schematic diagram of a water-sealed coaling container of the present invention.

Wherein: 24, coaling hopper, 25, coaling hopper cover, 26, material valve, 27, water seal tank, 28, rotating shaft, 29, annular baffle, 30, horizontal baffle.

Fig. 5 is a schematic diagram of the non-powered slagging grate of the utility model.

Wherein: 31, static grate teeth, 32, movable grate teeth, 33, rotating shaft, 34, rotary handle, 35, fire grate.

Fig. 6 is a schematic diagram of the waste heat recovery device of the present invention.

Wherein: 36, closed body, 37, run through the straight circular hole, 38, air inlet, 39, air outlet.

Fig. 7 is a schematic diagram of the hot air thermostat of the present invention.

Wherein: 40, waste heat intake pipe, 41, waste heat delivery pipe, 42, regulating valve, 43, air outlet pipe, 44, closed cavity, 45, water.

Detailed ways

Example:

The embodiment of the utility model is shown in the above diagram, consisting of a gasification furnace 1, a combustion furnace 2, a feeding mechanism 3, a coal feeding container 4, a drilling hole 5, a gas outlet 6, a grate 7, a blower fan 8, and a slag outlet 9 and a decompression gas production box 10, the gasifier 1 is in the shape of a sleeve, and the sleeve is filled with water, and the water communicates with the decompression gas production box 10 on the side of the gasification furnace 1 through small holes; the coal charging container 4 Located at the center of the top of the gasifier 1, it can accommodate the coal transported by the feeding mechanism 3 and add it to the gasifier 1; the drilling hole 5 is located at the peripheral part of the top of the gasifier 1, and the slag outlet 9 Located in the middle and lower part of the gasifier 1, the grate 7 is located below the slag outlet 9 in the gasifier 1, and the fan 8 is located outside the lower part of the grate 7 of the gasifier 1 to provide air and water vapor for the gasifier 1 The water gas is output by the gas outlet 6 on the upper side of the gasification furnace 1 and connected to the burner 11 in the combustion furnace 2. It is characterized in that the drilling hole 5 is cylindrical, and a safety valve is added on it to prevent the gasification furnace 1 from burning. Due to improper operation, there is a danger of backfire explosion; the coal charging container 4 is a water-sealed structure, which can prevent the coal dust from spreading during the coal charging process; the burner 11 is a water-cooled burner, so that the burner 11 can withstand high temperature; the grate 7 is a non-powered slagging grate, which is formed by staggered arrangement of dynamic and static grate teeth 32, 31, and the movable grate teeth 32 are fixed on the rotating shaft 33 in parallel, and one end of the rotating shaft 33 extends out of the gasifier 1 and is connected with the rotary handle 34; A waste heat recovery device is fixed above the front and rear exits of the furnace 2, and the waste heat recovery device transports the hot air collected with waste heat to the hot air thermostat, which is fixed on the water-cooled burner to increase and adjust the combustion temperature of the combustion furnace.

As shown in Figure 2, the safety valve has a round cover 14 made of metal, with an inner ring 15 on the round cover 14, and an annular groove 17 is formed between the outer ring 16 of the round cover 14, and the safety valve is placed in a cylindrical hole. On the drilling hole 5, the annular groove 17 is engaged with the drilling hole 5.

As shown in Figure 3, the water-cooled burner is composed of an air inlet pipe 18 and an air outlet pipe 19. The rear end of the air outlet pipe 19 is closed and the front end is open. There is a closed cavity 20 with a water inlet pipe 21 and a water outlet pipe 22 on the closed chamber 20. Cooling water flows into the closed chamber 20 by the water inlet pipe 21. After cooling the air outlet pipe 19, it flows out through the water outlet pipe 22 with heat.

As shown in Figure 4, the water-sealed coaling container is composed of a coaling hopper 24, a coaling hopper cover 25, and a material valve 26 located at the bottom of the coaling hopper 24, and a water-sealed groove 27 is arranged outside the upper edge of the coaling hopper 24. One end of the coal hopper cover 25 is connected to the side wall of the coal hopper 24 through the rotating shaft 28, and its corresponding end is a horizontal baffle 30. Circular baffle 29.

As shown in Figure 5, the non-powered slagging grate is composed of dynamic and static grate teeth 32, 31 arranged alternately. The movable grate teeth 32 are fixed on the rotating shaft 33 in parallel. To connect, manually rotate the rotary handle 34 outside the gasifier 1 to drive the movable grate 32 to rotate, so that the shearing motion between the movable and static grate 32 and 31 is completed to achieve the purpose of slag discharge.

As shown in Figure 6, the waste heat recovery device is a cylindrical closed body 36 made of steel plate. The diameter of both ends of the closed body 36 is larger than its middle part, and there are 7 penetrating straight circles regularly arranged in the middle of the closed body 36 Hole 37, air inlet 38 and air outlet 39 are provided at two ends of closing body 36.

The hot air thermostat is shown in Figure 7. It is composed of a waste heat inlet pipe 40 and two waste heat delivery pipes 41. One end of the waste heat inlet pipe 40 is connected with the air outlet 39 of the waste heat recovery device, and the other end is connected with two waste heat delivery pipes. 41. The two-way waste heat delivery pipe 41 is equipped with a regulating valve 42, and the output end of the two-way waste heat delivery pipe 41 is connected to the front opening of the outlet pipe of the burner.

Claims (1)

1. water-gas machine, form by vapourizing furnace, roasting kiln, feed mechanism, coal container, the hole of drilling a blasting hole, gas exit, fire grate, blower fan, slag notch and decompression system gas tank, vapourizing furnace is the cover tubular, it is water that sleeve adds in the layer, and water is connected by the decompression system gas tank of aperture and gasification furnace side; The coal container is positioned at the centre, top of vapourizing furnace, can hold the coal that transported by feed mechanism and it is joined in the vapourizing furnace; The hole of drilling a blasting hole is positioned at the peripheral position, top of vapourizing furnace, and slag notch is positioned at the position, middle and lower part of vapourizing furnace, and being positioned in the vapourizing furnace below the slag notch is fire grate, and blower fan is positioned at the outside, fire grate bottom of vapourizing furnace, for vapourizing furnace provides air and water vapour; Water-gas is exported on the burner of receiving in the roasting kiln by the gas exit of top, gasification furnace side, and the hole that it is characterized in that drilling a blasting hole is cylindric, is added with safety valve above; The coal container is the hydrolock structure; Burner is the water-cooled burner; Fire grate is unpowered deslagging fire grate, and being staggered by sound comb tooth forms, moving parallel being fixed in the rotating shaft of comb tooth, and rotating shaft one end stretches out outside the vapourizing furnace and is connected with rotary handle; The upper fixed withdrawer that has surplus heat in exit before and after the roasting kiln, the hot blast that waste-heat recoverer has surplus heat collection is transported to the hot blast thermosistor, and the hot blast thermosistor is fixed on the water-cooled burner, can increase and regulate the temperature of combustion of roasting kiln.

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