Combustion stabilizing device of biomass hot gas gasification boiler

Abstract

The utility model provides a stable combustion device of a biomass hot gas gasification boiler, which belongs to the technical field of production and manufacturing of biomass hot gas gasification boilers and comprises a stable combustion body, an exhaust pipe is fixedly connected to the outer side wall of an auxiliary end cover of the stable combustion body, a connecting pipe is fixedly connected to the end of the exhaust pipe, and the connecting pipe is fixedly connected to the outer side wall of the auxiliary end cover of the stable combustion body. The outer end of the connecting pipe is fixedly connected with a purifying cylinder, a mounting ring is fixedly connected in the purifying cylinder, a filter screen is fixedly connected in the mounting ring, a supporting plate is arranged on the upper side of the mounting ring and fixedly connected with the purifying cylinder, and a bearing is fixedly connected to the upper end face of the supporting plate. Through the arrangement of the purifying cylinder, the mounting ring, the filter screen, the supporting plate, the bearing, the connecting pipe, the flow dividing cylinder, the spray head, the water conveying pipe and the rotating structure, the filter screen can be cleaned in time, the cleanliness of the filter screen is guaranteed, the waste gas filtering effect is improved, replacement is not needed, and the cost is reduced; the problem that in the prior art, filter elements are frequently replaced, and the filtering cost is high is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of production and manufacturing of biomass hot gas fired boilers, in particular to a combustion stabilizing device of a biomass hot gas fired boiler. Background Art

[0002] Biomass gas is the use of crop straw, forest waste, edible fungus residue, livestock manure and all combustible materials as raw materials converted into combustible energy. Based on the current status of gas burners at home and abroad, the characteristics and application scope of various gas burners are summarized, combined with biomass gas purification process, gas composition and characteristics, the basic ideas and requirements of biomass gas burner design are analyzed, the structure and characteristics of several typical biomass gas burners are elaborated in detail, and the shortcomings of biomass gas burner design and problems existing in gas combustion are proposed.

[0003] After searching, in the prior art, a Chinese patent with patent application number CN202321631128.9 discloses a combustion stabilizing device for a biomass thermal gasification boiler, comprising a protective shell fixedly connected to a main end cover at one end and a protective cylinder with a filter element plugged into the inner wall, a conveying pipe that can be conveyed is plugged into one side of the main end cover, a fixing plate that can be fixed is fixedly connected to one end of the main end cover, a mixing pipe that can be mixed is plugged into the inner wall of the fixing plate, and a main conduit and a secondary conduit that can be conveyed are respectively plugged into the two sides of the outer surface of the main end cover; but the following defects still exist:

[0004] (1) The combustion stabilization device in the prior art purifies particulate matter in the exhaust gas through a filter element, which requires frequent replacement of the filter element, resulting in high costs. In addition, the filter element is easily clogged and cannot be replaced in time, which affects the filtering effect.

[0005] The combustion stabilization device in the prior art filters particulate matter in the exhaust gas through a filter element, but it is inconvenient to purify the acidic substances in the exhaust gas and is likely to cause air pollution.

[0006] Therefore, we made improvements to this problem and proposed a combustion stabilizing device for a biomass thermal gasification boiler. Utility Model Content

[0007] The utility model aims to solve the problems that the existing combustion stabilizing device has high cost for replacing filter elements for filtering and is inconvenient for purifying acidic substances in exhaust gas.

[0008] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0009] A combustion stabilizing device for a biomass thermal gasification boiler is provided to improve the above problems.

[0010] The utility model is specifically as follows:

[0011] The vent pipe is fixedly connected to the outer wall of the secondary end cover of the vent pipe, the end of the exhaust pipe is fixedly connected to a connecting pipe, the outer end of the connecting pipe is fixedly connected to a purification cylinder, a mounting ring is fixedly connected in the purification cylinder, a filter is fixedly connected in the mounting ring, a support plate is provided on the upper side of the mounting ring, and the support plate is fixedly connected to the purification cylinder, a bearing is fixedly connected to the upper end surface of the support plate, a connecting pipe is fixedly connected in the inner ring of the bearing, the bottom end of the connecting pipe passes through the support plate and is fixedly connected to a diversion cylinder, a group of nozzles are evenly fixedly connected to the bottom wall of the diversion cylinder, a water pipe is provided in the connecting pipe, and the water pipe passes through the purification cylinder and extends to the outside, a rotating structure for driving the diversion cylinder to rotate is provided on the support plate, a purification structure for purifying gas is provided at the top of the purification cylinder, and a first solenoid valve is installed at the bottom of the purification cylinder.

[0012] As a preferred technical solution of the utility model, the rotating structure includes a driven bevel gear fixed to the top of the connecting tube, the upper end surface of the support plate is fixedly connected to two support rods, a rotating shaft is rotatably connected between the two support rods, the inner end of the rotating shaft is fixedly connected to an active bevel gear meshing with the driven bevel gear, the outer end of the rotating shaft passes through the purification cylinder and extends to the outside, a bearing plate is fixedly connected to the outer side wall of the purification cylinder, a motor is fixedly connected to the upper end surface of the bearing plate, and the driving end of the motor is fixedly connected to the outer end of the rotating shaft.

[0013] As a preferred technical solution of the utility model, the purification structure includes a cylinder cover which is detachably mounted on the top of the purification cylinder by a bolt assembly, an air supply pipe is fixedly connected to the upper end surface of the cylinder cover, a liquid storage cylinder is provided outside the bottom of the air supply pipe, a support sleeve is fixedly connected to the liquid storage cylinder, and the support sleeve is fixedly connected to the purification cylinder.

[0014] As a preferred technical solution of the utility model, a mounting port is provided on the liquid storage cylinder, and a tempered glass is fixedly connected in the mounting port, a second solenoid valve is installed at the bottom end of the liquid storage cylinder, and alkaline absorption liquid is provided in the liquid storage cylinder.

[0015] As a preferred technical solution of the utility model, an opening is provided on the connecting pipe, and a reflux box is provided outside the opening. The reflux box is fixedly connected to the connecting pipe, and the reflux box is connected to the purification cylinder through the reflux pipe.

[0016] As a preferred technical solution of the utility model, the inner diameter of the connecting pipe is the same as the diameter of the water pipe, and the water pipe is fixedly connected to the purification cartridge.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In the solution of the utility model:

[0019] 1. Through the purification cylinder, mounting ring, filter screen, support plate, bearing, connection pipe, diversion cylinder, nozzle, water pipe and rotating structure, the filter screen can be cleaned in time, the cleanliness of the filter screen is guaranteed, the effect of filtering exhaust gas is improved, and there is no need to replace it, which reduces the cost and solves the problem of high cost of frequent replacement of filter element in the prior art;

[0020] 2. Through the purification structure, the acidic substances in the exhaust gas can be purified to avoid air pollution, improve the purification effect of the combustion stabilization device, and solve the problem of inconvenience in purifying the acidic substances in the exhaust gas in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the combustion stabilization device of the biomass thermal gasification boiler provided by the utility model;

[0022] Figure 2 A schematic diagram of the rear structure of the combustion stabilizing device of the biomass thermal gasification boiler provided by the utility model;

[0023] Figure 3 A schematic diagram of the internal structure of a purification cylinder of a combustion stabilization device of a biomass thermal gasification boiler provided by the utility model;

[0024] Figure 4 The utility model provides Figure 3 The enlarged view of point A in the middle;

[0025] Figure 5 A schematic diagram of the bottom structure of the purification cylinder of the combustion stabilization device of the biomass thermal gasification boiler provided by the utility model;

[0026] Figure 6 A schematic diagram of the purification structure of the combustion stabilization device of the biomass thermal gasification boiler provided by the utility model.

[0027] Indicated in the figure:

[0028] 1. Combustion stabilizing body; 2. Exhaust pipe; 3. Connecting pipe; 4. Purification cylinder; 5. Mounting ring; 6. Filter; 7. Support plate; 8. Bearing; 9. Connecting pipe; 10. Diverter cylinder; 11. Nozzle; 12. Water pipe; 13. Rotating structure; 1301. Driven bevel gear; 1302. Support rod; 1303. Rotating shaft; 1304. Active bevel gear; 1305. Loading plate; 1306. Motor; 14. Purification structure; 1401. Cylinder cover; 1402. Air pipe; 1403. Liquid storage cylinder; 1404. Support sleeve; 1405. Tempered glass; 1406. Second solenoid valve; 15. First solenoid valve; 16. Reflux box; 17. Reflux pipe. DETAILED DESCRIPTION

[0029] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this embodiment proposes a combustion stabilizing device for a biomass thermal gasification boiler, including a combustion stabilizing body 1, an exhaust pipe 2 is fixedly connected to the outer side wall of the secondary end cover of the combustion stabilizing body 1, the combustion stabilizing body 1 is a prior art and will not be described in detail here, the end of the exhaust pipe 2 is fixedly connected to a connecting pipe 3, the outer end of the connecting pipe 3 is fixedly connected to a purification cylinder 4, the purification cylinder 4 is fixedly connected to a mounting ring 5, the mounting ring 5 is fixedly connected to a filter screen 6, the mounting ring 5 and the filter screen 6 in the purification cylinder 4 are used for preliminary filtering of solid particles in the gas to protect subsequent purification equipment without the need to use a filter element for replacement, a support plate 7 is provided on the upper side of the mounting ring 5, and the support plate 7 is fixedly connected to the purification cylinder 4, and the upper end surface of the support plate 7 is fixedly A bearing 8 is fixedly connected, and a connecting pipe 9 is fixedly connected to the inner ring of the bearing 8. The bottom end of the connecting pipe 9 passes through the support plate 7 and is fixedly connected to the diverter tube 10. A group of nozzles 11 are evenly and fixedly connected to the bottom wall of the diverter tube 10. A water pipe 12 is arranged in the connecting pipe 9, and the water pipe 12 passes through the purification tube 4 and extends to the outside. A rotating structure 13 for driving the diverter tube 10 to rotate is provided on the support plate 7, which can drive the diverter tube 10 to rotate, so as to facilitate the spray cleaning of the filter screen 6, which is more convenient. A purification structure 14 for purifying gas is provided at the top of the purification tube 4, which is convenient for purifying the acidic gas in the exhaust gas. A first solenoid valve 15 is installed at the bottom of the purification tube 4.

[0031] like Figure 1 , Figure 3 and Figure 4As shown, as a preferred embodiment, on the basis of the above method, further, the rotating structure 13 includes a driven bevel gear 1301 fixed to the top of the connecting tube 9, the upper end surface of the support plate 7 is fixedly connected to two support rods 1302, and a rotating shaft 1303 is rotatably connected between the two support rods 1302, the inner end of the rotating shaft 1303 is fixedly connected to a driving bevel gear 1304 meshing with the driven bevel gear 1301, the outer end of the rotating shaft 1303 passes through the purification cylinder 4 and extends to the outside, and a supporting plate 1305 is fixedly connected to the outer side wall of the purification cylinder 4, and a motor 1306 is fixedly connected to the upper end surface of the supporting plate 1305, and the driving end of the motor 1306 is fixedly connected to the outer end of the rotating shaft 1303; the rotating shaft 1303 and the driving bevel gear 1304 are rotated by the motor 1306, and the driving bevel gear 1304 drives the driven bevel gear 1301 and the connecting tube 9 to rotate, thereby rotating the diverter cylinder 10, which is convenient for comprehensive cleaning of the filter screen 6.

[0032] like Figure 1 , Figure 2 and Figure 6 As shown, as a preferred embodiment, on the basis of the above method, further, the purification structure 14 includes a cylinder cover 1401 detachably mounted on the top of the purification cylinder 4 by a bolt assembly, the upper end surface of the cylinder cover 1401 is fixedly connected to the gas pipe 1402, and a liquid storage cylinder 1403 is provided on the bottom of the gas pipe 1402, and a support sleeve 1404 is fixedly connected to the liquid storage cylinder 1403, and the support sleeve 1404 is fixedly connected to the purification cylinder 4; it is convenient to purify the acidic substances in the gas to avoid air pollution.

[0033] like Figure 6 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, a mounting port is opened on the liquid storage cylinder 1403, and a tempered glass 1405 is fixedly connected in the mounting port, a second solenoid valve 1406 is installed at the bottom end of the liquid storage cylinder 1403, an alkaline absorption liquid is provided in the liquid storage cylinder 1403, and the liquid storage cylinder 1403 is filled with alkaline absorption liquid for absorbing acidic substances in the gas, and the tempered glass 1405 facilitates observation of the liquid level and liquid state in the liquid storage cylinder 1403.

[0034] like Figure 1 , Figure 3 and Figure 5 As shown, as a preferred embodiment, on the basis of the above method, further, an opening is provided on the connecting pipe 3, and a reflux box 16 is provided outside the opening, the reflux box 16 is fixedly connected to the connecting pipe 3, and the reflux box 16 is connected to the purification cylinder 4 through the reflux pipe 17; water is prevented from entering the exhaust pipe 2 during spray cleaning.

[0035] like Figure 1 and Figure 4As shown, as a preferred embodiment, on the basis of the above method, further, the inner diameter of the connecting pipe 9 is the same as the diameter of the water pipe 12, and the water pipe 12 is fixedly connected to the purification cartridge 4; thus, the smooth and stable water flow is ensured.

[0036] Specifically, when the combustion stabilizing device of the biomass thermal gasification boiler is working / in use: the exhaust gas generated by the combustion of the combustion stabilizing body 1 enters the exhaust pipe 2, and then enters the purification cylinder 4 through the connecting pipe 3. The filter 6 in the purification cylinder 4 filters the particulate matter in the exhaust gas. The filtered gas enters the liquid storage cylinder 1403 through the gas transmission pipe 1402. The alkaline absorption liquid in the liquid storage cylinder 1403 absorbs the acidic substances in the gas, which can effectively purify the exhaust gas; the filter 6 needs to be When cleaning, connect the water pipe 12 to the external water supply equipment to inject water into the connecting pipe 9. The water enters the diversion cylinder 10 and is then sprayed out through the nozzle 11. At the same time, start the motor 1306 to rotate the rotating shaft 1303 and the active bevel gear 1304. The active bevel gear 1304 drives the driven bevel gear 1301 and the connecting pipe 9 to rotate, thereby rotating the diversion cylinder 10, so as to spray and clean the filter screen 6, and then open the first solenoid valve 15 to discharge the sewage to the outside to complete the cleaning.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A combustion stabilizing device for a biomass thermal gasification boiler, comprising a combustion stabilizing body (1), characterized in that: An exhaust pipe (2) is fixedly connected to the outer side wall of the secondary end cover of the combustion stabilizing body (1); a connecting pipe (3) is fixedly connected to the end of the exhaust pipe (2); a purification cylinder (4) is fixedly connected to the outer end of the connecting pipe (3); a mounting ring (5) is fixedly connected to the inside of the purification cylinder (4); a filter screen (6) is fixedly connected to the inside of the mounting ring (5); a support plate (7) is provided on the upper side of the mounting ring (5); the support plate (7) is fixedly connected to the purification cylinder (4); a bearing (8) is fixedly connected to the upper end surface of the support plate (7); a connecting pipe (8) is fixedly connected to the inner ring of the bearing (8); 9), the bottom end of the connecting pipe (9) passes through the support plate (7) and is fixedly connected to a diverter tube (10), a group of nozzles (11) are evenly and fixedly connected to the bottom wall of the diverter tube (10), a water delivery pipe (12) is provided in the connecting pipe (9), and the water delivery pipe (12) passes through the purification tube (4) and extends to the outside, a rotating structure (13) for driving the diverter tube (10) to rotate is provided on the support plate (7), a purification structure (14) for purifying gas is provided at the top end of the purification tube (4), and a first solenoid valve (15) is installed at the bottom of the purification tube (4).

2. The combustion stabilizing device of a biomass thermal gasification boiler according to claim 1, characterized in that: The rotating structure (13) comprises a driven bevel gear (1301) fixed to the top end of the connecting tube (9); the upper end surface of the support plate (7) is fixedly connected to two support rods (1302); a rotating shaft (1303) is rotatably connected between the two support rods (1302); the inner end of the rotating shaft (1303) is fixedly connected to a driving bevel gear (1304) meshingly connected to the driven bevel gear (1301); the outer end of the rotating shaft (1303) passes through the purification cylinder (4) and extends to the outside; a bearing plate (1305) is fixedly connected to the outer side wall of the purification cylinder (4); a motor (1306) is fixedly connected to the upper end surface of the bearing plate (1305); and the driving end of the motor (1306) is fixedly connected to the outer end of the rotating shaft (1303).

3. The combustion stabilizing device of a biomass thermal gasification boiler according to claim 1, characterized in that: The purification structure (14) comprises a cylinder cover (1401) which is detachably mounted on the top end of the purification cylinder (4) by means of a bolt assembly; an air supply pipe (1402) is fixedly connected to the upper end surface of the cylinder cover (1401); a liquid storage cylinder (1403) is provided outside the bottom of the air supply pipe (1402); a support sleeve (1404) is fixedly connected to the liquid storage cylinder (1403); and the support sleeve (1404) is fixedly connected to the purification cylinder (4).

4. The combustion stabilizing device of a biomass thermal gasification boiler according to claim 3, characterized in that: The liquid storage cylinder (1403) is provided with a mounting opening, and a tempered glass (1405) is fixedly connected in the mounting opening. A second solenoid valve (1406) is installed at the bottom end of the liquid storage cylinder (1403), and alkaline absorption liquid is provided in the liquid storage cylinder (1403).

5. The combustion stabilizing device of a biomass thermal gasification boiler according to claim 1, characterized in that: The connecting pipe (3) is provided with an opening, and a reflux box (16) is provided outside the opening; the reflux box (16) is fixedly connected to the connecting pipe (3); and the reflux box (16) is connected to the purification cylinder (4) via a reflux pipe (17).

6. The combustion stabilizing device of a biomass thermal gasification boiler according to claim 1, characterized in that: The inner diameter of the connecting pipe (9) is the same as the diameter of the water delivery pipe (12), and the water delivery pipe (12) is fixedly connected to the purification cartridge (4).

Images