CN212134425U

CN212134425U - Smoke detection system for industrial kiln

Info

Publication number: CN212134425U
Application number: CN202020747818.0U
Authority: CN
Inventors: 沈忠东; 夏远清
Original assignee: Fujian Sinaean Co Tech Energy Saving Equipment Co ltd
Current assignee: Fujian Sinaean Co Tech Energy Saving Equipment Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2020-12-11
Anticipated expiration: 2030-05-08

Abstract

A smoke detection system for an industrial kiln relates to the technical field of smoke detection. It includes: the high-temperature-resistant sampling tube is fixedly assembled with the industrial kiln and extends into the industrial kiln; the cleaning mechanism is arranged on one side of the high-temperature-resistant sampling tube, far away from the industrial kiln, is hermetically assembled with the high-temperature-resistant sampling tube and is used for extending into the high-temperature-resistant sampling tube to perform cleaning treatment on the high-temperature-resistant sampling tube; the fan mechanism is arranged on one side of the high-temperature-resistant sampling tube, which is far away from the industrial kiln and is in sealed assembly with the high-temperature-resistant sampling tube; the solid-gas separation mechanism is hermetically assembled with the fan mechanism; the smoke analyzer is arranged on the solid-gas separation mechanism; and the control box is connected with the fan assembly, the cleaning assembly, the solid-gas separation mechanism and the smoke analyzer and is used for performing coordination control on the smoke detection system. Adopt above-mentioned technical scheme's smoke detection system, it is high to have adaptation high temperature smog detection, smog sample authenticity, and the sample is convenient, and high temperature resistant sampling tube is clean for a long time, detects the advantage that the precision is high.

Description

Smoke detection system for industrial kiln

Technical Field

The utility model relates to a smog detects technical field, concretely relates to smog detecting system for industrial kiln.

Background

It is known that cement is a hydraulic inorganic binder in powder form, which is mixed with water to form a slurry that hardens in air or better in water and which binds sand, stone, etc. together. The production process of silicate cement is representative in cement production, and is characterized by that it uses limestone and clay as main raw material, and adopts the processes of crushing, proportioning and grinding to obtain raw material, then feeds the raw material into cement kiln to calcine it into clinker, and then adds a proper quantity of gypsum (and sometimes adds mixing material or additive) into the clinker, and grinds it into the finished product.

The existing cement production plants need to be calcined during the cement production, the calcination needs to be carried out in an industrial kiln, and a large amount of smoke is generated in the calcination process of the industrial kiln. In order to ensure sufficient combustion of fuel and thus save fuel, sampling and detection of smoke generated in an industrial kiln are required.

The existing device for sampling smoke in the industrial kiln directly extends a high-temperature-resistant sampling pipe into the industrial kiln and then extracts the smoke through a negative pressure pump or an exhaust fan. The extracted sample is then placed into a different analyzer for testing. The smoke detection device who sets up like this is comparatively simple, and in the sampling process moreover, because negative pressure pump or air exhauster are carrying out the during operation, its inside appearance chamber all is in the negative pressure state, so, causes the entering of outside air easily to the authenticity of the sample that the influence was obtained, and then causes the distortion of testing result. Meanwhile, a large amount of dust can be generated in the calcining process, and when the high-temperature-resistant sampling tube extracts smoke, the dust can enter the high-temperature-resistant sampling tube, so that the high-temperature-resistant sampling tube is easy to block after long-term use. Therefore, improvements are desired.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a smoke detection system for industrial kiln, it is high to have smoke sampling authenticity, and sample convenience, swift, and high temperature resistant sampling tube is clean convenient, detects the advantage that the precision is high.

In order to achieve the above object, the utility model adopts the following technical scheme: a smoke detection system for an industrial kiln, comprising: the high-temperature-resistant sampling tube is fixedly assembled with the industrial kiln and extends into the industrial kiln, and is used for guiding the smoke generated in the industrial kiln out of the industrial kiln; the cleaning mechanism is arranged on one side of the high-temperature-resistant sampling tube, far away from the industrial kiln, is in seal assembly with the high-temperature-resistant sampling tube, and is used for extending into the high-temperature-resistant sampling tube to perform cleaning treatment on the high-temperature-resistant sampling tube so as to prevent the high-temperature-resistant sampling tube from being blocked; the fan mechanism is arranged on one side of the high-temperature-resistant sampling tube, far away from the industrial kiln, is in sealing assembly with the high-temperature-resistant sampling tube, is used for extracting smoke in the industrial kiln through the high-temperature-resistant sampling tube and can effectively prevent external gas from entering; the solid-gas separation mechanism is hermetically assembled with the fan mechanism and is used for collecting the smoke extracted by the fan assembly and removing dust from the smoke; the smoke analyzer is arranged on the solid-gas separation mechanism and is used for analyzing the smoke processed by the solid-gas separation mechanism to obtain a detection result; and the control box is connected with the fan assembly, the cleaning assembly, the solid-gas separation mechanism and the smoke analyzer and is used for performing coordination control on the smoke detection system.

The fan mechanism includes: a frame; the fan assembly is assembled on the rack, one end of the fan assembly is hermetically assembled with the high-temperature-resistant sampling tube, and the other end of the fan assembly is hermetically connected with the solid-gas separation mechanism; and the first power source is assembled on the rack, is positioned on one side of the fan assembly and is used for providing power for the fan assembly.

The fan subassembly includes: the solid-gas separation device comprises a shell, wherein a first cavity and a second cavity are arranged in the shell, the first cavity is close to the high-temperature-resistant sampling tube, the second cavity is close to the first power source, a smoke outlet is formed in one side, close to the solid-gas separation mechanism, of the second cavity, and a smoke channel is formed between the first cavity and the second cavity; the negative pressure impeller is arranged in the first cavity, is rotatably assembled with the shell and is used for generating negative pressure through self rotation to extract smoke in the high-temperature-resistant sampling pipe; the positive pressure impeller is arranged in the second chamber, is rotatably assembled with the shell and is used for generating positive pressure through self rotation so as to prevent external air from entering the second chamber and conveying smoke extracted by the negative pressure impeller; and one part of the driving shaft is rotatably arranged on the frame and fixedly assembled with the first power source, and the other part of the driving shaft penetrates into the shell and is rotatably assembled with the shell and is used for fixedly assembling the positive pressure impeller and the negative pressure impeller.

The cleaning mechanism includes: the case is hermetically assembled with the high-temperature-resistant sampling tube; the cleaning component is arranged in the case, the other part of the cleaning component is arranged on one side of the case, which is far away from the high-temperature-resistant sampling tube, penetrates through the case, extends into the high-temperature-resistant sampling tube and is used for cleaning the high-temperature-resistant sampling tube; the driving component is arranged in the case, can rotate relative to the case, and is used for driving the cleaning component to reciprocate in the high-temperature-resistant sampling tube so as to clean the high-temperature-resistant sampling tube; and the detection assembly is arranged on the case, connected with the driving assembly and the control box and used for detecting the length of the cleaning assembly extending into the high-temperature-resistant sampling tube so as to facilitate the control box to control the extending length.

The cleaning assembly includes: the cleaning flexible shaft penetrates through the case, extends into the high-temperature-resistant sampling tube, can reciprocate in the high-temperature-resistant sampling tube and is used for cleaning the inner wall of the high-temperature-resistant sampling tube; the fixed end and the case are fixedly assembled, the movable end curling disc is arranged below the case, and the cleaning coil is used for accommodating the cleaning flexible shaft; and one part of the guide shaft sleeve is butted with the high-temperature-resistant sampling tube, and the other part of the guide shaft sleeve is fixedly arranged in the case, sleeved on the cleaning flexible shaft and used for guiding the cleaning flexible shaft into the high-temperature-resistant sampling tube.

The cleaning flexible shaft is a steel wire flexible shaft, and a cleaning brush head is arranged on one side, close to the high-temperature-resistant sampling tube, of the cleaning flexible shaft.

The drive assembly includes: the first gear is arranged in the case, a first central shaft is arranged at the axis of the first gear, and the first central shaft is rotatably assembled with the case; the first pushing wheel is sleeved on the first central shaft and fixedly arranged with the first gear so as to synchronously rotate along with the first gear; the second gear is arranged in the case and meshed with the first gear, and a second central shaft is arranged at the axis of the second gear; the second pushing wheel is sleeved on the second central shaft, is fixedly arranged with the second gear, synchronously rotates along with the second gear, and is used for being matched with the first pushing wheel to push or pull the cleaning flexible shaft into the high-temperature-resistant sampling pipeline; the clamping assembly is arranged in the case and used for mounting the second gear and pressing the second gear to the first gear so as to enable the first pushing wheel to be in clamping fit with the second pushing wheel; the driving wheel is arranged in the case and meshed with the first gear to drive the first gear to rotate; and the main body is arranged outside the case, the power output shaft is fixedly matched with the driving wheel in a rotating way, and the second power source is used for driving the driving wheel to rotate.

The clamping assembly includes: the fixing frame is rotatably installed in the case through a hinge shaft, a mounting groove is formed in the fixing frame, the mounting groove is located right above the axle center of the second gear, and the mounting groove is used for assembling the second central shaft; the fixing piece is fixedly arranged on the side wall of the case; and the elastic part is arranged between the fixed frame and the fixed part, one end of the elastic part is assembled with the fixed frame, and the other end of the elastic part is assembled with the fixed frame and used for pressing the fixed frame to the side where the first gear is located so that the second pushing wheel and the first pushing wheel clamp the cleaning flexible shaft tightly.

The detection assembly comprises: the first travel switch is arranged on one side of the outer side of the case, close to the high-temperature-resistant sampling tube, and is connected with the control box; and the second travel switch is arranged on one side of the outer side of the case, which is far away from the high-temperature-resistant sampling tube, and is connected with the control box.

The solid-gas separation mechanism is an electrostatic dust collector, a smoke outlet is formed in one side, far away from the bottom face, of the electrostatic dust collector, and the smoke outlet is used for installing a smoke analyzer.

After the technical scheme is adopted, the utility model discloses beneficial effect does:

1. the fan subassembly that sets up is when extracting the smog in the industrial kiln, rotation through negative pressure impeller makes the inside negative pressure environment that forms of first cavity, thereby take out the smog in the industrial kiln in the first cavity, the smog of rethread smog passageway extraction in with the first cavity is carried to the second cavity in, then the rotation of positive pressure impeller in through the second cavity, make the atmospheric pressure in the second cavity be less than first cavity exit atmospheric pressure, and be greater than atmospheric pressure, thereby carry the smog of extraction in the first cavity to solid gas separating mechanism and remove dust, the fan subassembly that sets up like this, because atmospheric pressure in the second cavity is greater than atmospheric pressure, thereby effectively prevented in the outside air from entering into the second cavity, the authenticity of sample smog has effectively been ensured, and then the authenticity of testing result has been guaranteed.

2. The clean mechanism that sets up when high temperature resistant sampling tube blocks, carry out reciprocating motion in high temperature resistant sampling tube through the clean flexible axle of drive assembly drive, thereby drive the cleaning brush reciprocating motion in high temperature resistant sampling tube, thereby carry out cleaning operation to high temperature resistant sampling tube, the clean mechanism that sets up like this can stretch into in the high temperature resistant sampling tube automatically, carry out cleaning operation to the inner wall of high temperature resistant sampling tube, it is effectual to have a cleanness, cleaning operation is simple, clean advantage with low costs.

3. Before the smog of taking a sample enters into the smog analysis appearance, detach the dust that is mingled with in the smog through solid-gas separating mechanism to guaranteed to enter into the smog cleanliness factor in the smog analysis appearance, and then guaranteed the authenticity of testing result.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic view showing the overall structure of the fan structure in the present embodiment;

FIG. 3 is a first exploded view of the fan structure in this embodiment;

FIG. 4 is a first exploded view of the fan structure in this embodiment;

FIG. 5 is a schematic view showing the overall structure of the cleaning mechanism in this embodiment;

FIG. 6 is a schematic structural view of the cleaning mechanism of the present embodiment after the chassis is opened;

fig. 7 is an exploded view of the cleaning mechanism in this embodiment.

Description of reference numerals: 1. a high temperature resistant sampling tube; 2. a cleaning mechanism; 3. a fan mechanism; 4. a solid-gas separation mechanism; 5. a smoke analyzer; 6. a control box; 7. a detection port; 8. a three-way valve; 9. a frame; 10. a fan assembly; 11. a first power source; 12. a housing; 121. a housing body; 122. a front cover; 123. A rear cover; 124. a partition plate; 125. a first chamber; 126. a second chamber; 127. a smoke outlet; 128. A smoke channel; 129. a smoke inlet; 13. a positive pressure impeller; 14. a negative pressure impeller; 15. a drive shaft; 16. A sealing plate; 17. a chassis; 18. a cleaning assembly; 181. cleaning the flexible shaft; 182. cleaning the coil pipe; 183. A guide shaft; 184. cleaning the brush head; 19. a drive assembly; 20. a detection component; 201. a first travel switch; 202. a second travel switch; 21. a first gear; 22. a first pusher wheel; 23. a second gear; 24. a second pusher wheel; 25. a clamping assembly; 251. a fixed mount; 252. a fixing member; 253. an elastic member; 254. a groove; 26. a driving wheel; 27. a second power source; 28. a first central shaft; 29. a second central shaft; 30. an annular groove; 31. hinging a shaft; 32. a heat shield.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment as required without making a contribution, but all the embodiments are protected by the patent law within the scope of the claims of the present invention.

The present embodiment relates to a smoke detection system for an industrial kiln, as shown in fig. 1, comprising: the device comprises a high-temperature-resistant sampling tube 1, a cleaning mechanism 2, a fan mechanism 3, a solid-gas separation mechanism 4, a smoke analyzer 5 and a control box 6.

As shown in figure 1, a high-temperature-resistant sampling tube 1 is fixedly assembled with an industrial kiln and extends into the interior of the industrial kiln. The high-temperature-resistant sampling tube 1 is used for guiding the smoke generated in the industrial kiln out of the industrial kiln. The cleaning mechanism 2 is arranged on one side of the high-temperature-resistant sampling tube 1, which is far away from the industrial kiln, and is hermetically assembled with the high-temperature-resistant sampling tube 1. The cleaning mechanism 2 is used for extending into the high-temperature-resistant sampling tube 1 to clean the interior of the high-temperature-resistant sampling tube 1, so that the high-temperature-resistant sampling tube 1 is prevented from being blocked, and the interior of the high-temperature-resistant sampling tube 1 is ensured to be clean. The fan mechanism 3 is arranged on one side of the high-temperature-resistant sampling tube 1, which is far away from the industrial kiln, and is hermetically assembled with the high-temperature-resistant sampling tube 1. The fan mechanism 3 is used for extracting smoke in the industrial kiln through the high-temperature-resistant sampling tube 1 and can effectively prevent external gas from entering. The solid-gas separation mechanism 4 is hermetically assembled with the fan mechanism 3. The solid-gas separation mechanism 4 is used for collecting the smoke extracted by the fan assembly 10 and dedusting the smoke, so that the cleanliness of the smoke is ensured. The smoke analyzer 5 is arranged on the solid-gas separation mechanism 4. The smoke analyzer 5 is used for analyzing the smoke processed by the solid-gas separation mechanism 4 to obtain a detection result. The control box 6 is connected with the fan mechanism 3, the cleaning mechanism 2, the solid-gas separation mechanism 4 and the smoke analyzer 5. The control box 6 is used for carrying out coordination control on the smoke detection system.

In the present embodiment, the refractory sampling tube 1 is a metal tube in the prior art sampling. The solid-gas separation mechanism 4 is an electrostatic dust collector, a detection port 7 is arranged on one side, far away from the bottom surface, of the electrostatic dust collector, and the detection port 7 is used for installing a smoke analyzer 5 and guiding the smoke after dust removal into the smoke analyzer 5 for analysis. The smoke analyser 5 is prior art. The detection ports 7 are provided with two, and the two detection ports 7 are provided with the smoke analyzers 5. The control box 6 is a central control device in the prior art. The fan component 10 is connected with the high-temperature-resistant sampling tube 1 through a three-way valve 8 and a pipeline.

As shown in fig. 1 to 4, the fan mechanism 3 includes: a frame 9, a fan assembly 10 and a first power source 11. The fan component 10 is assembled on the frame 9, one end of the fan component 10 is hermetically assembled with the high-temperature-resistant sampling tube 1, and the other end of the fan component 10 is hermetically connected with the solid-gas separation mechanism 4. When the solid-gas separation mechanism 4 obtains the smoke, one part of the fan assembly 10 is used for generating negative pressure to extract the smoke in the industrial kiln; the other part is used for generating positive pressure to convey the extracted smoke to the solid-gas separation mechanism 4, thereby preventing the control air from entering in the conveying process. The first power source 11 is assembled on the frame 9 and located at one side of the fan assembly 10, and the first power source 11 is used for providing power for the fan assembly 10. In the present embodiment, the frame 9 is a metal frame, and the frame 9 is used for installing the blower assembly 10. The first power source 11 is an electric motor.

As shown in fig. 1-4, the fan assembly 10 includes: a housing 12, a positive pressure impeller 13, a negative pressure impeller 14, and a drive shaft 15. The positive pressure impeller 13 is disposed within the second chamber 126 and is rotatably assembled with the housing 12. The positive pressure impeller 13 serves to generate positive pressure by rotating itself to prevent external air from entering the second chamber 126 and to deliver smoke drawn by the negative pressure impeller 14. The driving shaft 15 is partly rotatably mounted on the frame 9 and fixedly assembled with the first power source 11, and partly penetrates into the housing 12 and is rotatably assembled with the housing 12. The driving shaft 15 is used for fixedly assembling the positive pressure impeller 13 and the negative pressure impeller 14, so that the coaxial rotation of the positive pressure impeller 13 and the negative pressure impeller 14 is realized.

As shown in fig. 1-4, the housing 12 includes: a case body 121, a front cover 122, and a rear cover 123. A partition 124 is provided in the case body 121, and the partition 124 is integrally formed with the case body 121. The partition 124 serves to divide the space inside the body into a first chamber 125 and a second chamber 126. The first chamber 125 is adjacent to the refractory coupon 1 and the second chamber 126 is adjacent to the first power source 11. The second chamber 126 is provided with a smoke outlet 127 at a side close to the solid-gas separation mechanism 4, and a smoke channel 128 is provided between the first chamber 125 and the second chamber 126. A smoke outlet is arranged on one side of the smoke channel 128 close to the solid-gas separation mechanism 4. The positive pressure impeller 13 and the negative pressure impeller 14 are both mounted on the partition plate 124 and are rotatably assembled with the partition plate 124. The front cover 122 is fitted on the case body 121 on the side close to the high temperature-resistant sampling tube 1, thereby sealing the first chamber 125. The rear cover 123 is fitted on the case body 121 on the side close to the first power source 11, thereby sealing the second chamber 126. Bearings are arranged at the assembly positions among the driving shaft 15, the frame 9, the rear cover 123 and the partition plate 124. The assembly between the drive shaft 15 and the rear cover 123 and the partition 124 is sealed.

In the present embodiment, the front cover 122, the case body 121, and the rear cover 123 are assembled by fastening bolts. Therefore, the positive pressure impeller 13 and the negative pressure impeller 14 are convenient to clean and maintain, and the service life of the whole fan mechanism 3 is prolonged. The front cover 122 is provided with a smoke inlet 129, and the smoke inlet 129 is used for sealing assembly with the high-temperature resistant sampling tube 1. The positive pressure impeller 13 is a semi-closed impeller, a sealing plate 16 is further arranged between the positive pressure impeller 13 and the experience port, a plurality of convex blocks are formed on the positive pressure impeller 13 along the blade direction, and a plurality of through holes assembled with the convex blocks are formed in the sealing plate 16, so that a closed space is formed after the positive pressure impeller 13 and the sealing plate 16 are assembled. Thus, when the positive pressure impeller 13 is operating, it is ensured that the captured smoke sample passes from the smoke outlet 127 of the first chamber 125 into the smoke channel 128 and is thus transported into the second chamber 126. Effectively placing ambient air from the front end cap into the first chamber 125.

As shown in fig. 1 to 4, when the first power source 11 rotates, the driving shaft 15 drives the positive pressure impeller 13 and the negative pressure impeller 14 to rotate coaxially and in the same direction, wherein the sealing plate 16 rotates together with the negative pressure impeller 14, so as to form a negative pressure in the first chamber 125 to extract smoke in the industrial kiln, and at the same time, a positive pressure is generated due to the operation of the positive pressure impeller 13, at this time, the air pressure in the second chamber 126 and the smoke passage 128 is greater than the atmospheric pressure and less than the air pressure at the smoke outlet 127, and the smoke enters the second chamber 126 from the first chamber 125 through the smoke passage 128 and enters the solid-gas separation mechanism 4 from the smoke outlet to perform a dust removal operation. Because the first cavity is communicated with the second cavity through the smoke channel 128, the second cavity 126 and the smoke channel 128 are both in a positive pressure state, and therefore when the rear cover 123 and the driving shaft 15 are worn due to long-time work, the outside air cannot enter the second cavity 126, it needs to be noted that when the second cavity 126 is in a micro-positive pressure state, the smoke inside the second cavity 126 will leak to the outside air from the worn part, however, the concentration of the smoke sample is not affected, and therefore the fan mechanism 3 can effectively ensure the authenticity of the obtained smoke concentration, and is beneficial to accurately detecting the obtained sample.

As shown in fig. 5 to 7, the cleaning mechanism 2 includes: a cabinet 17, a cleaning assembly 18, a drive assembly 19, and a detection assembly 20. The case 17 is hermetically assembled with the high-temperature-resistant sampling tube 1. One part of the cleaning component 18 is arranged in the case 17, and the other part is arranged on one side of the case 17 far away from the high-temperature-resistant sampling tube 1. The cleaning assembly 18 extends through the cabinet 17 into the refractory sampling tube 1. The cleaning assembly 18 is used for cleaning the high temperature resistant sampling tube 1. The driving assembly 19 is disposed in the cabinet 17 and can rotate relative to the cabinet 17. The driving assembly 19 is used for driving the cleaning assembly 18 to reciprocate in the refractory sampling tube 1 so as to clean the refractory sampling tube 1. The detection component 20 is arranged on the case 17 and connected with the driving component 19 and the control box 6, and the detection component 20 is used for detecting the length of the cleaning component 18 extending into the high-temperature-resistant sampling tube 1 so as to facilitate the control of the control box 6.

As shown in fig. 5-7, the cleaning assembly 18 includes: a cleaning flexible shaft 181, a cleaning coil pipe 182 and a guide shaft 183 sleeve. The cleaning flexible shaft 181 penetrates through the case 17 to extend into the high temperature resistant sampling tube 1 and can reciprocate in the high temperature resistant sampling tube 1. The cleaning flexible shaft 181 is used for cleaning the inner wall of the high-temperature-resistant sampling tube 1. The fixed end of the cleaning coil 182 is fixedly assembled with the chassis 17, and the flexible end curling disc is arranged below the chassis 17. The cleaning coil 182 is used for accommodating the cleaning flexible shaft 181, so that the cleaning flexible shaft 181 can be accommodated. One part of the guide shaft 183 is in butt joint with the high-temperature-resistant sampling tube 1, and the other part is fixedly arranged in the case 17 and sleeved on the cleaning flexible shaft 181. The guide shaft 183 is used for guiding the cleaning flexible shaft 181 into the high-temperature-resistant sampling tube 1.

In this embodiment, the cleaning flexible shaft 181 is a steel wire flexible shaft, and a cleaning brush head 184 is disposed on one side of the cleaning flexible shaft 181 close to the high temperature resistant sampling tube 1. The cleaning brush head 184 is a cylindrical steel wire brush head, and the cleaning brush head 184 is welded with the cleaning flexible shaft 181. The fixed end of the cleaning coil 182 is assembled with the cabinet 17 by fastening bolts. The guide shaft 183 is fixedly assembled with the chassis 17 by fastening bolts. In other embodiments, the cleaning brush head 184 is threadably assembled or integrally formed with the cleaning flexible shaft 181. The guide shaft 183 is provided with a heat insulation piece 32 on one side close to the high-temperature-resistant sampling tube 1, and the heat insulation piece 32 is used for connecting the high-temperature-resistant sampling tube 1 with the guide shaft 183.

As shown in fig. 5-7, the drive assembly 19 includes: a first gear 21, a first pushing wheel 22, a second gear 23, a second pushing wheel 24, a clamping assembly 25, a driving wheel 26 and a second power source 27.

The first gear 21 is disposed in the housing 17, a first central shaft 28 is disposed at an axial center of the first gear 21, and the first central shaft 28 is rotatably assembled with the housing 17. The first pushing wheel 22 is sleeved on the first central shaft 28 and fixedly assembled with the first gear 21 so as to rotate synchronously with the first gear 21. The second gear 23 is disposed in the housing 17 and meshes with the first gear 21. A second central shaft 29 is provided at the axial center of the second gear 23. The second pushing wheel 24 is sleeved on the second central shaft 29 and fixedly assembled with the second gear 23, so as to rotate synchronously with the second gear 23. The second pushing wheel 24 is used for being matched with the first pushing wheel 22, so that the cleaning flexible shaft 181 is pushed or pulled into the high-temperature-resistant sampling tube 1. The clamping assembly 25 is disposed within the cabinet 17. The clamping assembly 25 is used for mounting the second gear 23 and pressing the second gear 23 to the first gear 21 so as to enable the first pushing wheel 22 to be in clamping fit with the second pushing wheel 24, thereby ensuring the conveying stability of the cleaning flexible shaft 181. The driving wheel 26 is disposed in the housing 17 and engaged with the first gear 21 to drive the first gear 21 to rotate. The main body of the second power source 27 is arranged outside the case 17, and a power output shaft is fixedly matched with the driving wheel 26 in a rotating way. The second power source 27 is used to drive the capstan 26 in rotation.

As shown in fig. 5 to 7, it should be noted that the first gear 21 and the first pushing wheel 22 are fixedly assembled by six fastening bolts. The second gear 23 and the second pushing wheel 24 are fixedly assembled through six fastening bolts. The first center shaft 28 is integrally formed with the first gear 21, and the second center shaft 29 is also integrally formed with the second gear 23. The first central shaft 28 is rotatably assembled with the upper and lower cases of the cabinet 17, and a bearing is provided at the assembly position. Annular grooves 30 are formed in the mutually matched annular end surfaces of the first pushing wheel 22 and the second pushing wheel 24. The annular groove 30 is used for accommodating the cleaning flexible shaft 181. The annular groove 30 is used for increasing the contact area between the cleaning flexible shaft 181 and the first pushing wheel 22 and the contact area between the cleaning flexible shaft 181 and the second pushing wheel 24. Thereby effectively preventing the clean flexible axle 181 from skidding, having guaranteed the stability that clean flexible axle 181 carried.

As shown in fig. 5-7, the detection assembly 20 includes: a first travel switch 201 and a second travel switch 202. The first travel switch 201 is arranged on one side of the outer side of the case 17 close to the high-temperature-resistant sampling tube 1 and is connected with the control box 6. The second travel switch 202 is arranged on one side of the outer side of the case 17 far away from the high-temperature-resistant sampling tube 1 and is connected with the control box 6. When the cleaning mechanism carries out cleaning operation, stretch into length through detection subassembly 20 and detect it, when stretch into length reach with the predetermined value (the predetermined value is high temperature resistant sampling tube 1 length), control box 6 controls second power supply 27 antiport, thereby drive first push-push wheel 22 and second push-push wheel 24 and pull up clean flexible axle 181, slowly pull out clean flexible axle 181 from high temperature resistant sampling tube 1 and send into in cleaning coil 182 through guiding axle 183 cover and carry out the rolling, after detection subassembly 20 detected clean brush head 184 and got back to the initial position, control box 6 controls second power supply 27 corotation and cleans once more, through the reciprocating motion of many times of clean flexible axle 181, clean many times to high temperature resistant sampling tube 1, until high temperature resistant sampling tube 1 is clean.

As shown in fig. 5-7, the clamping assembly 25 includes: a fixing frame 251, a fixing member 252 and an elastic member 253. The fixing bracket 251 is rotatably installed in the cabinet 17 through a hinge shaft 31. The fixing frame 251 is provided with a mounting groove, the mounting groove is positioned right above the axle center of the second gear 23, and the mounting groove is used for assembling the second central shaft 29. The fixing member 252 is fixedly installed on the side wall of the cabinet 17. The elastic member 253 is disposed between the fixing frame 251 and the fixing member 252. The elastic member 253 has one end assembled with the fixing frame 251 and the other end assembled with the fixing frame 251. The elastic member 253 is used for pressing the fixing frame 251 to the side of the first gear 21, so that the second pushing wheel 24 and the first pushing wheel 22 clamp the cleaning flexible shaft 181.

In this embodiment, the fixing frame 251 is a U-shaped fixing frame 251, and a groove 254 is disposed on a side of the fixing frame 251 away from the hinge shaft 31, and the groove 254 is used for the elastic member 253 to be assembled. The fixing member 252 is a screw post, and the screw post is screw-assembled with the cabinet 17. The threaded column is used for adjusting the distance between the threaded column and the fixing frame 251, so as to adjust the extrusion force of the elastic member 253 on the fixing frame 251. The elastic member 253 is a spring, and the distance between the fixing frame 251 and the fixing member 252 is smaller than the original length of the spring. In other embodiments, the elastic member 253 may also be a spring block or a spring plate.

As shown in fig. 5-7, when the clamping assembly 25 pushes the second push wheel 24 to clamp the first push wheel 22, the fixed frame 251 is pushed to rotate around the hinge shaft 31 by the pressure provided by the spring, and since the second push wheel 24 and the second gear 23 are installed on the fixed frame 251 near the hinge shaft 31, the distance between the installation position of the second push wheel 24 and the hinge shaft 31 is smaller than the distance between the installation position of the second push wheel 24 and the groove 254, so that according to the lever principle, the hinge shaft 31 is a fulcrum, the groove 254 is an application point, and the installation position of the second push wheel 24 is a stress point, so that the application of a force by the elastic member 253 at the groove 254 can be amplified at the stress point, thereby facilitating the clamping assembly 25 to press the second push wheel 24 to the side of the first push wheel 22.

The working principle of the present embodiment is roughly as follows: during sampling, the three-way valve 8 is opened, the control box 6 controls the first power source 11 to start, the first power source 11 drives the positive pressure impeller 13 and the negative pressure impeller 14 to coaxially rotate in the same direction through the driving shaft 15, so that negative pressure is formed in the first chamber 125, smoke generated in the industrial kiln enters the first chamber 125 through the high temperature resistant sampling tube 1, then enters the smoke channel 128 through the smoke outlet 127 of the first chamber 125, meanwhile, the positive pressure impeller 13 forms positive pressure in the second chamber 126, because the air pressure in the second chamber 126 is smaller than the air pressure out of the smoke outlet 127 and larger than the atmospheric pressure, external air is effectively prevented from entering the second chamber 126, and further, a smoke sample in the second chamber 126 enters the solid-gas separation mechanism 4 through the smoke outlet to perform dust removal operation, thereby dust in the smoke is removed, clean smoke enters the smoke analyzer 5 through the detection port 7 to be analyzed, finally, the analysis result of the analyzer is sent to the control box 6, so that the user can conveniently check the analysis result; when the high temperature resistant sampling tube 1 is blocked, the control box 6 controls the second power source 27 to start, so that the second power source 27 drives the first pushing wheel 22 and the second pushing wheel 24 to rotate, thereby pushing the cleaning flexible shaft 181 in the cleaning coil 182 into the high temperature resistant sampling tube 1, cleaning the inner wall of the high temperature resistant sampling tube 1 through the cleaning brush head 184 in the moving process, simultaneously, detecting the extending length of the cleaning flexible shaft through the detection component 20 in the moving process, when the extending length reaches a preset value, the control box 6 controls the second power source 27 to rotate reversely, thereby driving the first pushing wheel 22 and the second pushing wheel 24 to pull back the cleaning flexible shaft 181, slowly pulling the cleaning flexible shaft 181 out of the high temperature resistant sampling tube 1 and feeding the cleaning flexible shaft 181 into the cleaning coil 182 through the guide shaft 183 to be wound, after the detection component 20 detects that the cleaning brush head 184 returns to the initial position, the control box 6 controls the second power source 27 to rotate forwards and clean again, and the high-temperature-resistant sampling tube 1 is cleaned for multiple times through multiple reciprocating motions of the cleaning flexible shaft 181 until the high-temperature-resistant sampling tube 1 is cleaned. The smog detecting system who sets up like this has smog sample authenticity height, and sample convenience, swift, high temperature resistant sampling tube 1 is clean convenient, detects the advantage that the precision is high.

The above description is only for the purpose of illustration and not limitation, and other modifications or equivalent replacements made by those skilled in the art to the technical solution of the present invention should be covered by the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A smoke detection system for an industrial kiln, comprising:

the high-temperature-resistant sampling tube (1) is fixedly assembled with the industrial kiln and extends into the industrial kiln and is used for guiding the smoke generated in the industrial kiln out of the industrial kiln;

the cleaning mechanism (2) is arranged on one side of the high-temperature-resistant sampling tube (1) far away from the industrial kiln, is in seal assembly with the high-temperature-resistant sampling tube (1), and is used for extending into the high-temperature-resistant sampling tube (1) to perform cleaning treatment on the high-temperature-resistant sampling tube to prevent the high-temperature-resistant sampling tube (1) from being blocked;

the fan mechanism (3) is arranged on one side of the high-temperature-resistant sampling tube (1) far away from the industrial kiln, is hermetically assembled with the high-temperature-resistant sampling tube (1), is used for extracting smoke in the industrial kiln through the high-temperature-resistant sampling tube (1), and can effectively prevent external gas from entering;

the solid-gas separation mechanism (4) is hermetically assembled with the fan mechanism (3) and is used for collecting the smoke extracted by the fan assembly (10) and performing dust removal treatment on the smoke;

the smoke analyzer (5) is arranged on the solid-gas separation mechanism (4) and is used for analyzing the smoke processed by the solid-gas separation mechanism (4) to obtain a detection result; and the number of the first and second groups,

and the control box (6) is connected with the fan assembly (10), the cleaning assembly (18), the solid-gas separation mechanism (4) and the smoke analyzer (5) and is used for performing coordination control on the smoke detection system.

2. Smoke detection system for industrial kilns according to claim 1, characterised in that said fan means (3) comprise:

a frame (9);

the fan assembly (10) is assembled on the rack (9), one end of the fan assembly is hermetically assembled with the high-temperature-resistant sampling tube (1), the other end of the fan assembly is hermetically connected with the solid-gas separation mechanism (4), when the solid-gas separation mechanism (4) obtains smoke, one part of the fan assembly (10) is used for generating negative pressure to extract the smoke in the industrial kiln, the other part of the fan assembly is used for generating positive pressure to convey the extracted smoke to the solid-gas separation mechanism (4), and control air is prevented from entering in the conveying process; and the number of the first and second groups,

and the first power source (11) is assembled on the frame (9), is positioned on one side of the fan assembly (10) and is used for providing power for the fan assembly (10).

3. A smoke detection system for industrial kilns according to claim 2, characterized in that the fan assembly (10) comprises:

a first chamber (125) and a second chamber (126) are arranged in the shell (12), the first chamber (125) is close to the high-temperature-resistant sampling tube (1), the second chamber (126) is close to the first power source (11), a smoke outlet (127) is arranged on one side, close to the solid-gas separation mechanism (4), of the second chamber (126), and a smoke channel (128) is arranged between the first chamber (125) and the second chamber (126);

the negative pressure impeller (14) is arranged in the first chamber (125) and is rotatably assembled with the shell (12) and is used for generating negative pressure through self rotation to extract smoke in the high-temperature-resistant sampling tube (1);

a positive pressure impeller (13) disposed in the second chamber (126) and rotatably fitted with the housing (12) for generating positive pressure by rotating itself to prevent external air from entering the second chamber (126) and to convey fumes extracted by the negative pressure impeller (14); and the number of the first and second groups,

a driving shaft (15) which is arranged on the frame (9) in a part rotating way and is fixedly assembled with the first power source (11), and the other part penetrates into the shell (12) and is rotatably assembled with the shell (12) and is used for fixedly assembling the positive pressure impeller (13) and the negative pressure impeller (14).

4. Smoke detection system for industrial kilns according to claim 1, characterised in that said cleaning means (2) comprise:

a case (17) hermetically assembled with the high-temperature-resistant sampling tube (1);

a cleaning component (18) which is arranged in the case (17) in part, is arranged on one side of the case (17) far away from the high-temperature-resistant sampling tube (1), penetrates through the case (17), extends into the high-temperature-resistant sampling tube (1), and is used for cleaning the high-temperature-resistant sampling tube (1);

the driving component (19) is arranged in the case (17), can rotate relative to the case (17), and is used for driving the cleaning component (18) to reciprocate in the high-temperature-resistant sampling tube (1) so as to clean the high-temperature-resistant sampling tube (1);

and the detection component (20) is arranged on the case (17), connected with the driving component (19) and the control box (6) and used for detecting the length of the cleaning component (18) extending into the high-temperature-resistant sampling tube (1) so as to facilitate the control box (6) to control the extending length.

5. Smoke detection system for industrial kilns according to claim 4, characterized in that the cleaning assembly (18) comprises:

a cleaning flexible shaft (181) which penetrates through the case (17), extends into the high-temperature-resistant sampling tube (1), can reciprocate in the high-temperature-resistant sampling tube (1), and is used for cleaning the inner wall of the high-temperature-resistant sampling tube (1);

the fixed end of the cleaning coil pipe (182) is fixedly assembled with the case (17), the movable end of the cleaning coil pipe is arranged below the case (17) and used for accommodating the cleaning flexible shaft (181); and the number of the first and second groups,

one part of the guide shaft sleeve is in butt joint with the high-temperature-resistant sampling tube (1), and the other part of the guide shaft sleeve is fixedly arranged in the case (17), sleeved on the cleaning flexible shaft (181) and used for guiding the cleaning flexible shaft (181) into the high-temperature-resistant sampling tube (1).

6. The smoke detection system for the industrial kiln as claimed in claim 5, wherein the cleaning flexible shaft (181) is a steel wire flexible shaft, and a cleaning brush head (184) is arranged on one side of the cleaning flexible shaft (181) close to the high temperature resistant sampling tube (1).

7. Smoke detection system for industrial kilns according to claim 6, characterized in that said driving assembly (19) comprises:

a first gear (21) arranged in the case (17), wherein a first central shaft (28) is arranged at the axis of the first gear (21), and the first central shaft (28) is rotatably assembled with the case (17);

the first pushing wheel (22) is sleeved on the first central shaft (28) and fixedly arranged with the first gear (21) to synchronously rotate along with the first gear (21);

a second gear (23) which is arranged in the case (17) and is meshed with the first gear (21), wherein a second central shaft (29) is arranged at the axis of the second gear (23);

the second pushing wheel (24) is sleeved on the second central shaft (29), fixedly arranged with the second gear (23), synchronously rotates along with the second gear (23), and matched with the first pushing wheel (22) to push or pull the cleaning flexible shaft (181) into the high-temperature-resistant sampling tube (1);

a clamping assembly (25) arranged in the case (17) and used for installing the second gear (23) and pressing the second gear (23) to the first gear (21) so as to enable the first pushing wheel (22) to be in clamping fit with the second pushing wheel (24);

a driving wheel (26) which is arranged in the case (17) and is meshed with the first gear (21) to drive the first gear (21) to rotate; and the number of the first and second groups,

the main body is arranged on a second power source (27) which is arranged outside the case (17), fixedly matched with the driving wheel (26) through a power output shaft and used for driving the driving wheel (26) to rotate.

8. Smoke detection system for industrial kilns according to claim 7, characterized in that said clamping assembly (25) comprises:

a fixing frame (251) rotatably mounted in the case (17) through a hinge shaft (31), wherein the fixing frame (251) is provided with a mounting groove, the mounting groove is positioned right above the axis of the second gear (23), and the mounting groove is used for assembling the second central shaft (29);

a fixing piece (252) fixedly arranged on the side wall of the case (17); and the number of the first and second groups,

and the elastic part (253) is arranged between the fixed frame (251) and the fixed part (252), one end of the elastic part is assembled with the fixed frame (251), the other end of the elastic part is assembled with the fixed frame (251), and the elastic part is used for pressing the fixed frame (251) to the side of the first gear (21) so that the second pushing wheel (24) and the first pushing wheel (22) clamp the cleaning flexible shaft (181).

9. Smoke detection system for industrial kilns according to claim 8, characterized in that said detection assembly (20) comprises:

the first travel switch (201) is arranged on the outer side of the case (17), is close to one side of the high-temperature-resistant sampling tube (1) and is connected with the control box (6); and the number of the first and second groups,

and the second travel switch (202) is arranged on the outer side of the case (17), is far away from one side of the high-temperature-resistant sampling tube (1) and is connected with the control box (6).

10. A smoke detection system for industrial kilns according to any one of claims 1 to 9, characterised in that said solid-gas separation means (4) is an electrostatic precipitator provided with a smoke outlet (127) on the side remote from the bottom surface, said smoke outlet (127) being provided for mounting a smoke analyser (5).