Returned coal gas control mechanism for coke manufacturing equipment
By introducing a multi-stage filtration and heat recovery system into the coke manufacturing equipment, the problems of incomplete coal gas purification and insufficient waste heat utilization have been solved, achieving efficient coal gas purification and waste heat recovery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional coke manufacturing equipment has poor gas purification effects, failing to effectively remove fine pollutants such as tar and dust, and lacks waste heat recovery structures, resulting in low heat exchange efficiency.
A multi-stage filtration system is adopted, including filter plates, electrostatic precipitators, and desulfurization towers, combined with heat recovery components. Large particulate impurities are removed by the filter plates, tar and dust are removed by the electrostatic precipitators, hydrogen sulfide is removed by the desulfurization towers, and waste heat is collected through the heat recovery pipes.
It achieves efficient purification of coal gas, removing tar, dust and hydrogen sulfide, improving the purification effect and enhancing the recovery and utilization of waste heat.
Smart Images
Figure CN224030932U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to coke manufacturing technical field, especially, relate to a kind of back furnace coal gas control mechanism for coke manufacturing equipment. BACKGROUND
[0002] Iron and steel industry is the pillar industry of China's economy, and coke is the key raw material when smelting steel, in addition to providing thermal energy, coke also plays a supporting skeleton, acting as a reducing agent in the smelting process, and the rapid development and application of blast furnace large-scale and coal injection technology make steel enterprises put forward higher requirements for coke quality, and coal gas is generated in the process of coke manufacturing, which needs to be collected by using back furnace control mechanism.
[0003] After coal gas is discharged, it needs to be purified, and the traditional filter device only uses single filter screen or sedimentation chamber for treatment, which has limited interception effect on large-particle impurities, and cannot remove tar, dust and other small pollutants, thereby reducing the purification effect of the device, and lacking waste heat recovery structure for high-temperature coal gas or recycling through heat exchanger, the short residence time of coal gas leads to low heat exchange efficiency of the device, therefore, the present application provides a back furnace coal gas control mechanism for coke manufacturing equipment to solve the above problems. SUMMARY
[0004] The utility model discloses a kind of back furnace coal gas control mechanisms for coke manufacturing equipment, by controlling coal gas from air inlet pipe into ventilation pipeline, coal gas is filtered by filter plate and enters electrostatic precipitator, tar and dust in coal gas are removed by using electrostatic precipitator, then enter desulfurizing tower, hydrogen sulfide in coal gas is removed by using desulfurizing tower, to obtain pure coal gas, to solve the technical defects in the above background technology.
[0005] To solve the above technical problems, the utility model is realized by the following technical scheme: the utility model is a kind of back furnace coal gas control mechanism for coke manufacturing equipment, including ventilation pipeline, filter plate is fixedly arranged in the ventilation pipeline, large-particle impurities in coal gas are filtered by filter plate, electrostatic precipitator is installed on the side of ventilation pipeline, tar and dust in coal gas are removed by electrostatic precipitator, desulfurizing tower is installed on the side of electrostatic precipitator, and desulfurizing tower is used to remove hydrogen sulfide in coal gas, and heat energy recovery assembly is installed on the side of desulfurizing tower.
[0006] The heat energy recovery assembly includes heat energy recovery pipe, and the heat energy recovery pipe collects the waste heat of coal gas.
[0007] The utility model further sets up, the filter plate surface is equipped with a plurality of filter holes, the ventilation pipeline circumferential surface is equipped with discharge port, and the other side of ventilation pipeline is fixedly provided with air inlet pipe which is communicated with its inside.
[0008] The utility model further sets up, the air inlet pipe is connected with outside coal gas export through the hose, the air duct circumferential surface rotation is provided with the block pipe, the block pipe circumferential surface is set up with the guide hole that discharges the mouth corresponding.
[0009] The utility model further sets up, the block pipe circumferential surface is fixedly set up with the worm wheel, the electrostatic precipitator other side fixed mounting with the collection box that air duct inside links together, the collection box is at the block pipe bottom, the rotation cooperation between block pipe and collection box.
[0010] The utility model further sets up, the collection box inner bottom is provided with the inclined plate, the collection box one side is fixedly set up with two limit boards, and the worm wheel that is adapted with the worm wheel is rotationally arranged between two limit boards, and one end of worm wheel penetrates to one side of one limit board and is fixedly connected with drive motor.
[0011] The utility model further sets up, the heat energy recovery pipe inside is fixedly set up with the gas conveying auger, and the heat energy recovery pipe one side is fixedly set up with the gas outlet pipe that its inside links together.
[0012] The utility model has following beneficial effect:
[0013] 1, the utility model discloses a control gas from the air inlet pipe and enter the air duct, and the gas is filtered and enters the electrostatic precipitator through filter plate, utilizes the electrostatic precipitator to adsorb and remove the tar and dust in the gas, then enters the desulfurizing tower, utilizes the desulfurizing tower to remove hydrogen sulfide in the gas, to obtain pure gas, this process is through multistage filtration to remove the waste in the gas, improves the purification effect of gas.
[0014] 2, the utility model discloses a conveying auger to convey the purified gas, and the conveying auger reduces the flow speed of gas in this process, enhances the residence time of gas in the heat energy recovery pipe, makes the heat energy recovery pipe collect more waste heat, to increase the utilization effect of waste heat in the heat energy recovery pipe. ACCURATE DRAWINGS
[0015] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.
[0016] Figure 1 It is a kind of coke manufacturing equipment with the structure diagram of the structure of coke manufacturing equipment.
[0017] Figure 2 As Figure 1 Another angle structure schematic view.
[0018] Figure 3 As Figure 1 Structure sectional view.
[0019] Figure 4 As Figure 3 Structure front view.
[0020] Figure 5 As the relationship between the air duct and the filter plate in the utility model.
[0021] In the drawings, the components represented by each reference numeral are listed as follows:
[0022] 1-air duct, 2-filter plate, 3-electrostatic precipitator, 4-desulfurization tower, 5-thermal energy recovery assembly, 501-thermal energy recovery pipe, 502-gas conveying auger, 503-gas outlet pipe, 6-filter hole, 7-discharge port, 8-gas inlet pipe, 9-plugging pipe, 10-material guide port, 11-worm gear, 12-collection box, 13-inclined plate, 14-limiting plate, 15-worm, 16-driving motor. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0024] Please refer to Figures 1-5 The utility model discloses a kind of coke manufacturing equipment with return flue gas control mechanism, including air duct 1, air duct 1 inside fixedly provided with filter plate 2, pass through filter plate 2, filter large particle impurities in coal gas, air duct 1 side is equipped with electrostatic precipitator 3, pass through electrostatic precipitator 3, remove tar and dust in coal gas, electrostatic precipitator 3 side is equipped with desulfurization tower 4, desulfurization tower 4 is used to remove hydrogen sulfide in coal gas, desulfurization tower 4 side is equipped with thermal energy recovery assembly 5;
[0025] Coal gas enters air duct 1 and is filtered by filter plate 2, and the large particle impurities filtered out are in air duct 1, and coal gas enters electrostatic precipitator 3 by filter plate 2, and tar and dust in coal gas are adsorbed and removed by electrostatic precipitator 3, and the coal gas after dust removal enters desulfurization tower 4 from electrostatic precipitator 3, and hydrogen sulfide in coal gas is removed by desulfurization tower 4, so that pure coal gas is obtained, and coal gas is then discharged by thermal energy recovery assembly 5, and is collected by external collection device.
[0026] Specifically, the filter plate 2 is provided with a plurality of filter holes 6 on the surface, and the filtered gas enters the electrostatic precipitator 3 through the filter holes 6. The air duct 1 is provided with a discharge port 7 on the side, and the other side of the air duct 1 is fixedly provided with an air inlet pipe 8 connected with the inside. The gas enters the air duct 1 from the air inlet pipe 8, and the air inlet pipe 8 is connected with the external gas outlet through a hose. The air duct 1 is rotatably provided with a blocking pipe 9 on the side, and the blocking pipe 9 is provided with a material guiding port 10 corresponding to the discharge port 7.
[0027] In the initial state, the material guiding port 10 is opposite to the discharge port 7, and the discharge port 7 is blocked by the blocking pipe 9. When the gas is filtered, large particles remain in the air duct 1. At this time, the blocking pipe 9 is controlled to rotate to drive the material guiding port 10 to rotate until the material guiding port 10 coincides with the discharge port 7. At this time, the impurities in the air duct 1 fall along the discharge port 7.
[0028] Further, the blocking pipe 9 is fixedly provided with a worm gear 11 on the side, and the electrostatic precipitator 3 is fixedly provided with a collecting box 12 connected with the inside of the air duct 1. The impurities in the air duct 1 fall into the inside of the collecting box 12 through the discharge port 7. The collecting box 12 is located at the bottom of the blocking pipe 9, and the blocking pipe 9 and the collecting box 12 are rotatably matched. The inside bottom of the collecting box 12 is provided with an inclined plate 13, and the collecting box 12 is fixedly provided with two limiting plates 14 on one side. The impurities slide into the inside of the collecting box 12 along the inclined plate 13, so that the impurities are evenly distributed in the collecting box 12 to avoid accumulation.
[0029] Further, the two limiting plates 14 are rotatably provided with a worm 15 matched with the worm gear 11 between them. One end of the worm 15 penetrates to one side of one of the limiting plates 14 and is fixedly connected with a driving motor 16. The driving motor 16 is controlled to drive the worm 15 to rotate, and the worm gear 11 synchronously rotates to drive the blocking pipe 9 to rotate, and further drives the material guiding port 10 to rotate.
[0030] The heat energy recovery assembly 5 includes a heat energy recovery pipe 501 for collecting the waste heat of the gas. The heat energy recovery pipe 501 is coaxially arranged with the air duct 1. The heat energy recovery pipe 501 is fixedly provided with a gas conveying auger 502 inside. The heat energy recovery pipe 501 is fixedly provided with an air outlet pipe 503 connected with the inside on one side. The purified gas is conveyed out through the conveying auger 502. The conveying auger 502 reduces the flow speed of the gas and increases the residence time of the gas in the heat energy recovery pipe 501, so that the heat energy recovery pipe 501 collects more waste heat, thereby increasing the utilization of the waste heat collected in the heat energy recovery pipe 501.
[0031] The working principle of the utility model is as follows: in the initial state, the material guide opening 10 is opposite to the discharge opening 7, at this time, the discharge opening 7 is blocked by the blocking pipe 9, the gas enters the ventilation pipeline 1 from the gas inlet pipe 8, is filtered through the filter plate 2, the large particle impurities are filtered out in the ventilation pipeline 1, the gas enters the electrostatic precipitator 3 through the filter plate 2, tar and dust in the gas are adsorbed and removed through the electrostatic precipitator 3, the dust-removed gas enters the desulfurization tower 4 from the electrostatic precipitator 3, hydrogen sulfide in the gas is removed through the desulfurization tower 4, so that the pure gas is obtained, the purified gas is conveyed through the conveying auger 502, and finally is discharged to the external collecting device through the gas outlet pipe 503;
[0032] When the gas is filtered, the large particle impurities are left in the ventilation pipeline 1, the control driving motor 16 drives the worm 15 to rotate, the worm wheel 11 synchronously rotates to drive the blocking pipe 9 to rotate, and then drives the material guide opening 10 to rotate until the material guide opening 10 is coincident with the discharge opening 7, at this time, the impurities in the ventilation pipeline 1 fall along the discharge opening 7, the impurities in the ventilation pipeline 1 fall through the discharge opening 7 to the inclined plate 13 in the collecting box 12, and the impurities slide into the inside of the collecting box 12 along the inclined plate 13, so that the impurities are uniformly distributed in the collecting box 12.
[0033] The preferred embodiments disclosed above are only used for helping to describe the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments. Apparently, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalent thereof.
Claims
1. A coke manufacturing equipment recycle gas control mechanism, comprising a gas supply pipe (1), characterized in that: The ventilation pipe (1) is fixedly equipped with a filter plate (2) to filter large particulate impurities in the coal gas. An electrostatic precipitator (3) is installed on one side of the ventilation pipe (1) to remove tar and dust from the coal gas. A desulfurization tower (4) is installed on one side of the electrostatic precipitator (3) to remove hydrogen sulfide from the coal gas. A heat recovery component (5) is installed on one side of the desulfurization tower (4). The heat recovery component (5) includes a heat recovery pipe (501) for collecting waste heat from coal gas. The heat recovery pipe (501) is coaxially arranged with the ventilation pipe (1).
2. The coke manufacturing equipment's recycled gas control mechanism according to claim 1, characterized in that, The filter plate (2) has several filter holes (6) on its surface, the ventilation pipe (1) has a discharge port (7) on its circumferential side, and the ventilation pipe (1) has an air inlet pipe (8) fixedly installed on the other side of the ventilation pipe (1) and connected to its interior.
3. The coke manufacturing equipment's recycled gas control mechanism according to claim 2, characterized in that, The air inlet pipe (8) is connected to the external gas outlet via a hose. A sealing pipe (9) is rotatably provided on the circumference of the air inlet pipe (1). A guide port (10) corresponding to the discharge port (7) is opened on the circumference of the sealing pipe (9).
4. The coke manufacturing equipment's recycled gas control mechanism according to claim 3, characterized in that, A worm gear (11) is fixedly installed on the periphery of the sealing tube (9), and a collection box (12) connected to the inside of the ventilation pipe (1) is fixedly installed on the other side of the electrostatic precipitator (3). The collection box (12) is located at the bottom of the sealing tube (9), and the sealing tube (9) and the collection box (12) are rotatably engaged.
5. A coke manufacturing equipment recycle gas control mechanism according to claim 4, characterized in that, The bottom of the collection box (12) is provided with an inclined plate (13), and two limiting plates (14) are fixedly provided on one side of the collection box (12); A worm (15) adapted to the worm wheel (11) is rotatably disposed between the two limiting plates (14). One end of the worm (15) passes through to one side of one of the limiting plates (14) and is fixedly connected to a drive motor (16).
6. The coke manufacturing equipment's recycled gas control mechanism according to claim 5, characterized in that, The heat recovery pipe (501) is fixedly equipped with an air conveying auger (502), and an air outlet pipe (503) connected to the inside of the heat recovery pipe (501) is fixedly equipped on one side of the heat recovery pipe (501).