Recovery treatment device for brick making waste gas

Abstract

The invention relates to the technical field of waste gas treatment, in particular to a brick-making waste gas recovery treatment device which comprises a movable kiln exhaust table and further comprises a high-temperature-resistant gas collecting hood used for sucking waste gas generated by kiln bricks placed at the top end of the movable kiln exhaust table; an aspirator; the two ends of the first pipeline communicate with the air inlet end of the air suction machine and the high-temperature-resistant air collecting hood correspondingly; according to the invention, the gas near the kiln bricks placed on the exhaust table of the movable kiln can be collected in time, only the gas is collected and detected when no harmful gas is generated, and when the harmful gas is detected to appear in the collected gas, the reaction treatment is carried out in time through the treatment liquid.

Description

Technical Field

[0001] The present invention relates to the field of industrial waste gas treatment, and in particular to a device for recovering and treating waste gas from brick making. Background Art

[0002] During the brick-making process, kiln combustion and brick drying generate large amounts of high-temperature exhaust gases. The main pollutants include sulfur oxides (SOx), nitrogen oxides (NOx), carbon monoxide (CO), and dust particles (PM2.5 / PM10). If these exhaust gases are discharged directly without treatment, they will seriously pollute the atmospheric environment and cause problems such as acid rain and smog. Traditional treatment processes often use single spray towers or electrostatic precipitators, which suffer from low treatment efficiency, high chemical consumption, and wasteful heat energy. For example, after a brick factory uses wet desulfurization, the wastewater contains a large amount of sulfate, requiring additional treatment. Furthermore, due to the high temperature of the exhaust gases (200-400°C), direct discharge results in heat energy losses of over 30%.

[0003] During the industrialized processing of manually recycled kiln bricks, the recycled bricks must first be color-coded and quality-checked. Because bricks of different materials (such as high-alumina bricks and clay bricks) differ significantly in their subsequent reuse (high-alumina bricks are mostly used for high-temperature kiln linings, while clay bricks are used as building substrates), they need to be quickly sorted based on their appearance, color, weight, percussion sound characteristics, or tools such as handheld spectrometers. However, during the batch sorting and disassembly process, the refractory coatings (such as aluminum silicate mortar) attached to the surface of the kiln bricks or the chemical binders (containing sulfur and nitrogen compounds) remaining inside the bricks will release large amounts of harmful exhaust gases such as sulfur oxides (SOx), nitrogen oxides (NOx), and hydrogen fluoride (HF) during mechanical crushing. Long-term exposure can easily lead to damage to the respiratory mucosa. Currently, the sorting process mostly uses open conveyor belts, and the exhaust gases escape directly into the workshop, causing environmental pollution and requiring improvement. Summary of the Invention

[0004] The present invention proposes a device for recovering and treating brick-making waste gas in view of the characteristics of high temperature, high dust content and sulfur / nitrogen oxide content of brick-making waste gas.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a device for recycling and treating waste gas from brick making, comprising a mobile kiln exhaust platform, and further comprising:

[0006] A high-temperature resistant gas collection hood, which is used to absorb the exhaust gas generated by the kiln bricks placed on the top of the mobile kiln exhaust platform;

[0007] Suction machine;

[0008] a first pipeline, wherein both ends of the first pipeline are respectively connected to the air inlet end of the air aspirator and the high-temperature resistant air collecting hood;

[0009] An exhaust gas treatment component, comprising a treatment tank located inside the mobile kiln exhaust platform and storing a certain amount of treatment liquid, and a nozzle disposed in the treatment tank and above the liquid level of the treatment liquid for spraying the treatment agent;

[0010] a second pipe, the second pipe running through the processing tank, one end of the second pipe being located in the processing tank and the other end being connected to the air outlet of the aspirator;

[0011] a gas detector connected to the surface of the second pipe and used to detect gaseous substances passing through the second pipe;

[0012] A liquid injection device, which is used to deliver the treatment liquid to the nozzle and adjust the height of the liquid level in the treatment tank;

[0013] The treatment liquid is an alkaline spray liquid using a composite solution of lime milk (Ca(OH)2) and NaOH, with a pH value controlled at 10-12.

[0014] The controller is used to control the liquid injection device to inject the treatment liquid into the nozzle according to the harmful gas substance information detected by the gas detector, and adjust the height of the liquid level in the treatment tank to be higher than the gas outlet end.

[0015] It should be understood that in the process of transferring raw materials, the raw materials are often placed on a mobile device for transportation. During the transfer process within the factory, kiln bricks may produce harmful gases under inappropriate conditions, causing pollution to the surrounding environment during transportation or idleness, affecting the health of workers. This implementation plan can solve the above problems. The specific implementation process is as follows:

[0016] The suction power is provided by the suction machine, and the space on the top surface of the mobile kiln exhaust platform is continuously sucked through the high-temperature resistant gas collecting hood, and the sucked gas is discharged into the processing tank through the second pipe;

[0017] When the gas detector detects that the gas passing through the second pipeline contains irritating and toxic gases, such as ammonia, sulfur dioxide, chlorine, and fluorine oxides, the detected gas information is sent to the controller. The controller generates control information according to the gas information and sends the control information to the liquid injection device to inject the treatment liquid into the nozzle. The nozzle sprays the treatment liquid into the treatment tank and at the same time raises the liquid level of the treatment liquid in the treatment tank so that the liquid level is higher than the exhaust end of the second pipeline, so that the gas discharged into the treatment tank is treated;

[0018] The entire process enables the timely collection of gas near the kiln bricks placed on the exhaust platform of the mobile kiln. When no harmful gas is generated, only gas collection and detection are carried out. When harmful gas is detected in the collected gas, it is promptly reacted and treated with treatment liquid.

[0019] During the application of the treatment liquid, when no treatment is required, the spraying of the treatment liquid is canceled, and the treatment liquid in the treatment tank is placed below the exhaust end of the second pipe to prevent the gas without detected harmful substances from passing through the treatment liquid and causing unnecessary effects on the treatment liquid, such as carrying solution, or gaseous substances in the gas reacting with the treatment liquid and affecting the properties of the treatment liquid;

[0020] When treatment is required, the treatment liquid is sprayed and at the same time, the treatment liquid flows over the exhaust end of the second pipe, so that the gas passes through the treatment liquid stored in the treatment tank to achieve secondary treatment, which is beneficial to the secondary treatment of the collected gas and helps reduce the degree of pollution to the factory caused by the gas generated by the kiln bricks.

[0021] As a further optimized embodiment of the invention, the processing tank includes a processing space and a liquid storage space, the gas outlet end of the second pipe is located at the bottom end of the processing space, and also includes an external exhaust pipe, one end of the external exhaust pipe is connected to the top of the processing tank, and the other end is connected to the outer wall of the mobile kiln exhaust platform.

[0022] It should be understood that through the setting of the processing space and the liquid storage space, when there is no need to process the gas, the liquid level of the processing liquid can be lowered in the liquid storage space. When the gas needs to be processed, the processing liquid is increased and the liquid level of the processing liquid is controlled in the processing space and overflows the exhaust end of the second pipe to facilitate the processing of the inhaled gas. By setting an external exhaust pipe, the treated gas can be discharged.

[0023] As a further optimized embodiment of the invention, a filter screen is provided between the processing space and the liquid storage space.

[0024] By setting up the filter plate, the treated treatment liquid is filtered, so that the treatment liquid stored in the liquid storage space is filtered, which is beneficial to the separation of reaction impurities and provides good conditions for the next step of reuse of the treatment liquid in the storage chamber.

[0025] As an optional embodiment of the invention, the liquid injection device includes:

[0026] a liquid storage tank, wherein the treatment liquid is stored in the liquid storage tank;

[0027] A pumping device, which is used to pump the treatment liquid in the liquid storage tank to the nozzle;

[0028] A connecting pipe, the two ends of which are respectively connected to the bottom end of the liquid storage tank and the liquid storage space, so as to maintain the connection between the bottom end of the liquid storage tank and the bottom end of the processing tank;

[0029] The liquid replenishing device is used to replenish the treatment liquid in the liquid storage tank to adjust the liquid level of the treatment liquid in the liquid storage tank and the treatment tank.

[0030] It should be understood that the connection pipe is provided to maintain equilibrium between the liquid levels of the treatment liquid in the storage tank and the treatment tank. When not being treated, the liquid level of the treatment liquid in the treatment tank is within the liquid storage space, thereby reducing contact with the injected gas and thereby reducing the impact of the gas without detected harmful substances on the treatment liquid.

[0031] When harmful gases are detected in the collected gas, the liquid replenishing device is controlled to replenish liquid into the liquid storage tank, so as to keep the liquid level of the treatment liquid in the treatment tank rising until the liquid level of the treatment liquid is higher than the exhaust end of the second pipe, so that the gas contacts the inside of the treatment liquid to achieve reaction treatment, and at the same time, the pumping device is controlled to pump the treatment liquid in the liquid storage tank to the nozzle, and the treatment liquid falls into the treatment liquid in the treatment tank after being sprayed by the nozzle, and then circulates with the liquid storage tank through the connecting pipe, so as to always maintain balance, which is also conducive to the recycling of the treatment liquid.

[0032] As an optional embodiment of the invention, the pumping device includes:

[0033] A first water pump, wherein the water inlet of the first water pump extends to the bottom end of the liquid storage tank through a third pipe, and the water outlet of the first water pump is connected to the nozzle through a fourth pipe.

[0034] It should be understood that when harmful substances are detected in the collected gas, the controller controls the first water pump to start, thereby pumping the treatment liquid and providing the treatment liquid to the nozzle.

[0035] As an optional embodiment of the invention, the fluid infusion device includes

[0036] a fluid replenishing tank, wherein the treatment fluid is stored in the fluid replenishing tank;

[0037] The second water pump has a liquid inlet connected to the bottom of the side of the liquid replenishing tank, and a liquid outlet connected to the liquid storage tank, so as to replenish the treated liquid in the liquid replenishing tank into the liquid storage tank.

[0038] It should be understood that when harmful substances are detected in the collected gas, the controller controls the second water pump to start and pump a specified amount of treatment liquid to achieve the pumping of the treatment liquid, so as to replenish the treatment liquid in the liquid replenishment tank into the liquid storage tank, thereby ensuring that there is sufficient treatment liquid in the treatment tank and the liquid storage tank.

[0039] As an optional embodiment of the invention, the nozzle is a rotatable nozzle, and the nozzle includes:

[0040] a communication shell, wherein a top end of the communication shell is connected to a fourth pipe;

[0041] an impeller, the impeller being rotatably connected to the inner wall of the communicating shell;

[0042] A rotating head, the rotating head is rotatably connected to the bottom end of the communication shell, and a plurality of spray heads distributed in an annular array are fixedly connected on the side wall;

[0043] A linkage shaft is connected to the rotating head and the impeller respectively, so as to drive the rotating head to rotate synchronously with the rotation of the impeller.

[0044] It should be understood that in the process of the pumping device pumping the treatment liquid into the nozzle and discharging it through the spray head, the treatment liquid will impact the impeller, causing the impeller to rotate. The impeller will synchronously drive the rotating head to rotate through the linkage shaft, realizing rotary spraying, which is conducive to uniformly spraying the treatment liquid in the treatment tank and is conducive to collecting the incoming gas for uniform treatment.

[0045] As a further optimized embodiment of the invention, it also includes a rotary exhaust head, which includes:

[0046] an annular body, the annular body being located at the inner bottom end of the processing space and being in communication with the second pipe;

[0047] an upper sealing cover, the upper sealing cover being in contact and sealed with the top of the annular body;

[0048] An exhaust hood is rotatably connected to the bottom of the annular body, and a plurality of air outlet pipes distributed in a circular array are fixedly connected to the side wall;

[0049] a lower sealing cover, the lower sealing cover being in contact and sealed with the bottom of the exhaust hood, and a plurality of stirring rods distributed in a circular array being fixedly connected to the sidewall of the lower sealing cover;

[0050] The bottom end of the linkage shaft penetrates into the interior of the rotary exhaust head, and the linkage shaft is fixedly connected to the upper sealing cover and the lower sealing cover respectively.

[0051] It should be understood that during the process of the nozzle spraying the treatment liquid, the linkage rod will rotate, and the linkage rod will synchronously drive the upper sealing cover and the lower sealing cover to rotate, and the lower sealing cover will synchronously drive the stirring rod to move, stirring the treatment liquid in the treatment tank and near the exhaust end of the second pipe, so that the injected gas and the treatment liquid are fully mixed, which is conducive to full contact and reaction between the treatment liquid and the injected gas.

[0052] As a further optimized embodiment of the invention, the air outlet pipe is arranged at an inclination so as to push the exhaust hood to rotate while exhausting the air, thereby performing mobile exhaust.

[0053] It should be understood that when the gas is discharged through the outlet pipe, since it is set at an angle, the gas will push the exhaust hood to rotate in the process of passing through the outlet pipe, and the rotation direction is opposite to that of the lower sealing cover, thereby achieving uniform exhaust. At the same time, the outlet pipe stirs the treatment liquid, and the stirring direction is opposite to that of the stirring rod, thereby achieving multi-directional stirring, which is conducive to sufficient contact between the gas and the treatment liquid.

[0054] As a further optimized embodiment of the invention, the high temperature resistant gas collecting hood includes:

[0055] a lifting air box, the lifting air box being in communication with a top end of the first pipe;

[0056] A folding suction head, the folding suction head is rotatably connected to the top of the lifting air box and is connected to the top of the lifting air box through a hose, and the two sides of the folding suction head are respectively provided with a first suction groove and a second suction groove;

[0057] The sealing component is used to seal the first suction groove and connect the second suction groove for suction when the folding suction head is unfolded.

[0058] Compared with the prior art, the present invention has the following beneficial effects:

[0059] The present invention realizes the timely collection of gas near the raw materials placed on the exhaust platform of the mobile kiln. When no harmful gas is generated, only gas collection and detection are performed. When harmful gas is detected in the collected gas, reaction treatment is carried out in time through the treatment liquid.

[0060] The present invention cancels the spraying of the treatment liquid when no treatment is required during the process of applying the treatment liquid, and makes the treatment liquid in the treatment tank be below the exhaust end of the second pipe, so as to avoid the gas of no detected harmful substances passing through the interior of the treatment liquid and causing unnecessary influence on the treatment liquid.

[0061] The present invention realizes secondary treatment by spraying the treatment liquid when treatment is needed, and at the same time, the treatment liquid overflows the exhaust end of the second pipe, so that the gas passes through the treatment liquid stored in the treatment tank, which is beneficial to the secondary treatment of the collected gas and helps to reduce the pollution of the gas generated by the kiln bricks to the factory.

[0062] According to the present invention, when the gas is discharged through the outlet pipe, since it is arranged at an angle, the gas will push the exhaust hood to rotate in the opposite direction of the rotation of the lower sealing cover during the process of passing through the outlet pipe, thereby achieving uniform exhaust. At the same time, the outlet pipe stirs the treatment liquid in the opposite direction of the stirring direction of the stirring rod, thereby achieving multi-directional stirring, which is conducive to sufficient contact between the gas and the treatment liquid.

[0063] The present invention controls the folding suction head to flip and unfold when harmful substances are detected in the gas collected at the exhaust table of the mobile kiln. During the flipping and unfolding process, the first suction groove is sealed by the sealing component, and the second suction groove is connected for suction, so that the suction end is located above the exhaust table of the mobile kiln, which is more conducive to fully collecting the gas above the exhaust table of the mobile kiln, and is conducive to reducing the spread of harmful gases generated by kiln bricks placed on the exhaust table of the mobile kiln in the factory environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 This is a schematic diagram of the first overall structure of the present invention.

[0065] Figure 2 for Figure 1 Enlarged view of part A.

[0066] Figure 3 This is a second overall structural diagram of the present invention.

[0067] Figure 4 for Figure 3 Enlarged view of part B.

[0068] Figure 5 It is a structural cross-sectional view of the exhaust gas treatment component of the present invention.

[0069] Figure 6 This is a first structural cross-sectional view of the high-temperature resistant gas collecting hood of the present invention.

[0070] Figure 7 This is a second structural cross-sectional view of the high-temperature resistant gas collecting hood of the present invention.

[0071] Figure 8 This is a first overall structural schematic diagram of the high-temperature resistant gas collecting hood of the present invention in a stored state.

[0072] Figure 9 for Figure 8 Enlarged view of part C in the middle

[0073] Figure 10 It is a structural cross-sectional view of the nozzle and exhaust head of the present invention.

[0074] Figure 11 for Figure 10 Enlarged view of part D in the middle.

[0075] Figure 12 for Figure 10 Enlarged view of part E.

[0076] Figure 13 This is a second overall structural schematic diagram of the high-temperature resistant gas collecting hood of the present invention in a stored state.

[0077] In the picture: 1. Mobile kiln exhaust platform;

[0078] 2. High temperature resistant gas collecting hood; 201. Folding suction head; 202. Lifting air box; 203. Hose;

[0079] 3. First air suction groove; 4. Second air suction groove;

[0080] 5. Air aspirator; 6. First pipeline; 7. Processing tank; 701. Processing space; 702. Liquid storage space; 8. Filter screen; 9. External exhaust pipe;

[0081] 10. Nozzle; 1001. Connecting shell; 1002. Impeller; 1003. Rotating head; 1004. Spray head; 1005. Linkage shaft;

[0082] 11. Second pipeline; 12. Gas detector; 13. Controller; 14. Liquid storage tank; 15. Connecting pipe; 16. First water pump; 17. Third pipeline; 18. Fourth pipeline; 19. Liquid replenishment tank; 20. Second water pump;

[0083] 21. Rotating exhaust head; 2101. Ring body; 2102. Upper sealing cover; 2103. Exhaust hood; 2104. Exhaust pipe; 2105. Lower sealing cover; 2106. Stirring rod;

[0084] 22. Sliding sealing cover; 2201. First connecting groove; 2202. Second connecting groove; 23. Electric telescopic rod; 24. Linkage slot block; 2401. Inclined slot; 2402. Giving way transverse slot; 25. Elastic telescopic rod; 26. Linkage pin. DETAILED DESCRIPTION

[0085] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0086] like Figures 1 to 13 The device for recycling and treating waste gas from brick making shown in the figure comprises a mobile kiln exhaust platform 1, and further comprises:

[0087] Specifically, the movable kiln exhaust platform 1 has a cavity inside.

[0088] The high temperature resistant gas collecting hood 2 is used to absorb the exhaust gas generated by the kiln bricks placed on the top of the mobile kiln exhaust platform 1;

[0089] Aspirator 5;

[0090] Specifically, the air suction machine 5 is located inside the mobile kiln exhaust platform 1 .

[0091] The first pipe 6, both ends of which are connected to the air inlet end of the air suction machine 5 and the high temperature resistant air collecting hood 2 respectively;

[0092] The exhaust treatment assembly comprises a treatment tank 7 and a spray head 10 for spraying treatment agent, the treatment tank 7 is located inside the mobile kiln exhaust platform 1 and stores a certain amount of treatment liquid, and the spray head 10 is arranged in the treatment tank 7 and located above the liquid level of the treatment liquid.

[0093] Specifically, the treatment tank 7 is located in the cavity inside the mobile kiln exhaust platform 1.

[0094] The second pipeline 11 penetrates the treatment tank 7, one end of the second pipeline 11 is located in the treatment tank 7, and the other end of the second pipeline 11 is in communication with the gas outlet end of the air suction machine 5.

[0095] The gas detector 12 is in communication with the surface of the second pipeline 11 and is used for detecting the gas substance passing through the second pipeline 11.

[0096] The liquid injection device is used for conveying the treatment liquid to the spray head 10 and adjusting the height of the liquid level in the treatment tank 7 at the same time.

[0097] The controller 13 is used for adjusting the height of the liquid level in the treatment tank 7 to be higher than the gas outlet end while the liquid injection device injects the treatment liquid into the spray head 10 according to the harmful gas substance information detected by the gas detector 12.

[0098] Specifically, the controller 13 is fixedly installed on the side wall of the mobile kiln exhaust platform 1.

[0099] It should be understood that the high-value high-alumina bricks are mixed with ordinary clay bricks, and the kiln bricks are often manually crushed to generate exhaust gas. The moving device is a commonly used kiln brick transfer device in the prior art, which is prior art. During the transfer of the kiln bricks, the kiln bricks may generate harmful gas under inappropriate conditions due to jolting and collision, and during the transfer or idle process, the surrounding environment is polluted and the health of the workers is affected. The embodiment can solve the above problems, and the specific implementation process is as follows:

[0100] The air suction machine 5 provides air suction power, continuously sucks the space on the top surface of the mobile kiln exhaust platform 1 through the high-temperature-resistant gas collecting cover 2, and discharges the sucked gas into the treatment tank 7 through the second pipeline 11.

[0101] When the gas detector 12 detects the presence of toxic gases, such as ammonia, sulfur dioxide, chlorine, and fluorine oxide, etc. in the second pipeline 11, the detected gas information is sent to the controller 13, which generates control information according to the gas information and sends the control information to the liquid injection device to inject the treatment liquid into the spray head 10, which sprays the treatment liquid into the treatment tank 7 and raises the liquid level in the treatment tank 7 so that the liquid level is higher than the exhaust end of the second pipeline 11, so that the gas discharged into the treatment tank 7 is treated;

[0102] The entire process realizes the timely collection of gases near the kiln bricks placed on the mobile kiln exhaust platform 1, and only collects and detects the gases when no harmful gases are generated. When harmful gases are detected in the collected gases, the treatment liquid is used for reaction treatment in a timely manner.

[0103] In the process of applying the treatment liquid, when no treatment is needed, the treatment liquid is sprayed, and the treatment liquid in the treatment tank 7 is below the exhaust end of the second pipeline 11, avoiding the unnecessary influence of the gas without harmful substances passing through the inside of the treatment liquid, which may carry the solution or the gas substances in the gas reacting with the treatment liquid, affecting the properties of the treatment liquid;

[0104] When treatment is needed, the treatment liquid is sprayed at the same time, the exhaust end of the second pipeline 11 is covered with the treatment liquid, and the gas passes through the inside of the treatment liquid stored in the treatment tank 7, realizing secondary treatment, which is beneficial to the secondary treatment of the collected gas and reduces the pollution degree of the gas generated by the kiln bricks to the working environment.

[0105] As a further optimized embodiment of the invention, the treatment tank 7 includes a treatment space 701 and a liquid storage space 702, the exhaust end of the second pipeline 11 is located at the bottom end of the treatment space 701, and further includes an exhaust pipe 9, one end of which communicates with the top end of the treatment tank 7, and the other end communicates with the outer side wall of the mobile kiln exhaust platform 1.

[0106] It should be understood that by providing the treatment space 701 and the liquid storage space 702, the treatment liquid level can be lowered in the liquid storage space 702 when no treatment of the gas is needed, and the treatment liquid can be increased when treatment of the gas is needed, and the treatment liquid level is controlled in the treatment space 701 and covers the exhaust end of the second pipeline 11, so as to treat the inhaled gas. By providing the exhaust pipe 9, the treated gas is discharged.

[0107] As a further optimized embodiment of the invention, a filter screen 8 is provided between the treatment space 701 and the liquid storage space 702.

[0108] By setting up the filter plate, the treated treatment liquid is filtered, so that the treatment liquid stored in the liquid storage space 702 is filtered, which is beneficial to the separation of reaction impurities and provides good conditions for the next step of reuse of the treatment liquid in the storage chamber.

[0109] As an optional embodiment of the invention, the liquid injection device includes:

[0110] a liquid storage tank 14 , wherein the liquid storage tank 14 stores a treatment liquid;

[0111] A pumping device is used to pump the treatment liquid in the liquid storage tank 14 to the nozzle 10;

[0112] A connecting pipe 15, the two ends of which are respectively connected to the bottom end of the liquid storage tank 14 and the liquid storage space 702, so as to maintain the connection between the bottom end of the liquid storage tank 14 and the bottom end of the processing tank 7;

[0113] The liquid replenishing device is used to replenish the treatment liquid in the liquid storage tank 14 to adjust the liquid level of the treatment liquid in the liquid storage tank 14 and the treatment tank 7.

[0114] It should be understood that the connection pipe 15 allows the liquid levels of the treatment liquid in the liquid storage tank 14 and the treatment tank 7 to be balanced. When not being treated, the liquid level of the treatment liquid in the treatment tank 7 is within the liquid storage space 702, thereby reducing contact with the injected gas and thereby reducing the impact of the gas without detected harmful substances on the treatment liquid.

[0115] When harmful gases are detected in the collected gas, the liquid replenishing device is controlled to replenish liquid into the liquid storage tank 14, so as to keep the liquid level of the treatment liquid in the treatment tank 7 rising until the liquid level of the treatment liquid is higher than the exhaust end of the second pipe 11, so that the gas contacts the inside of the treatment liquid to achieve reaction treatment, and at the same time, the pumping device is controlled to pump the treatment liquid in the liquid storage tank 14 to the nozzle 10, and after being sprayed by the nozzle 10, it falls into the treatment liquid in the treatment tank 7, and then circulates with the liquid storage tank 14 through the connecting pipe 15, so as to always maintain balance, which is also conducive to the recycling of the treatment liquid.

[0116] As an optional embodiment of the invention, the pumping device includes:

[0117] The first water pump 16 has a water inlet end extending to the bottom end of the liquid storage tank 14 through a third pipe 17 , and a water outlet end of the first water pump 16 is connected to the nozzle 10 through a fourth pipe 18 .

[0118] It should be understood that when harmful substances are detected in the collected gas, the controller 13 controls the first water pump 16 to start, thereby pumping the treatment liquid and providing the treatment liquid to the nozzle 10.

[0119] As an optional embodiment of the invention, the fluid replenishing device includes a fluid replenishing tank 19, in which the treatment fluid is stored;

[0120] The second water pump 20 has its liquid inlet connected to the bottom of the side of the liquid replenishing tank 19 , and its liquid outlet connected to the liquid storage tank 14 , so as to replenish the treated liquid in the liquid replenishing tank 19 into the liquid storage tank 14 .

[0121] It should be understood that when harmful substances are detected in the collected gas, the controller 13 controls the second water pump 20 to start and pump a specified amount of treatment liquid to achieve the pumping of the treatment liquid, so as to replenish the treatment liquid in the liquid replenishment tank 19 into the liquid storage tank 14, and ensure that there is sufficient treatment liquid in the treatment tank 7 and the liquid storage tank 14.

[0122] As an optional embodiment of the invention, the nozzle 10 is a rotatable nozzle 10, and the nozzle 10 includes:

[0123] The communicating shell 1001, the top end of the communicating shell 1001 is in communication with the fourth pipe 18;

[0124] Impeller 1002, impeller 1002 is rotatably connected to the inner wall of the communication shell 1001;

[0125] The rotating head 1003 is rotatably connected to the bottom end of the communication shell 1001, and the side wall is fixedly connected to multiple spray heads 1004 distributed in an annular array;

[0126] The linkage shaft 1005 is connected to the rotating head 1003 and the impeller 1002 respectively, so as to realize synchronous rotation of the rotating head 1003 while the impeller 1002 rotates.

[0127] It should be understood that in the process of the pumping device pumping the treatment liquid into the nozzle 10 and discharging it through the spray head 1004, the treatment liquid will impact the impeller 1002, causing the impeller 1002 to rotate, and the impeller 1002 will synchronously drive the rotating head 1003 to rotate through the linkage shaft 1005, realizing rotary spraying, which is beneficial to uniformly spraying the treatment liquid into the treatment tank 7 and is beneficial to collecting the incoming gas for uniform treatment.

[0128] As a further optimized embodiment of the invention, a rotary exhaust head 21 is further included. The rotary exhaust head 21 includes:

[0129] an annular body 2101, the annular body 2101 is located at the inner bottom end of the processing space 701 and is connected to the second pipe 11;

[0130] An upper sealing cover 2102 , which contacts and seals the top of the annular body 2101 ;

[0131] Specifically, in the prior art, contact sealing can be achieved by providing a sealing gasket between the upper sealing cover 2102 and the annular body 2101 to form a close seal.

[0132] The exhaust hood 2103 is rotatably connected to the bottom of the annular body 2101, and a plurality of air outlet pipes 2104 distributed in a circular array are fixedly connected to the side wall;

[0133] The lower sealing cover 2105 is in contact and sealed with the bottom of the exhaust cover 2103. The side wall of the lower sealing cover 2105 is fixedly connected with a plurality of stirring rods 2106 distributed in a circular array;

[0134] The bottom end of the linkage shaft 1005 penetrates into the interior of the rotary exhaust head 21 , and the linkage shaft 1005 is fixedly connected to the upper sealing cover 2102 and the lower sealing cover 2105 respectively.

[0135] It should be understood that during the process of the nozzle 10 spraying the treatment liquid, the linkage shaft 1005 will rotate, and the linkage shaft 1005 will synchronously drive the upper sealing cover 2102 and the lower sealing cover 2105 to rotate, and the lower sealing cover 2105 will synchronously drive the stirring rod 2106 to move, stirring the treatment liquid in the treatment tank 7 and near the exhaust end of the second pipe 11, so that the injected gas and the treatment liquid are fully mixed, which is conducive to the full contact reaction between the treatment liquid and the injected gas.

[0136] As a further optimized embodiment of the invention, the air outlet pipe 2104 is arranged at an inclination so as to push the exhaust hood 2103 to rotate while exhausting the air, thereby performing mobile exhaust.

[0137] It should be understood that when the gas is discharged through the outlet pipe 2104, since it is set at an angle, the gas will push the exhaust hood 2103 to rotate in the process of passing through the outlet pipe 2104, and the rotation direction is opposite to that of the lower sealing cover 2105, thereby achieving uniform exhaust. At the same time, the outlet pipe 2104 stirs the treatment liquid, and the stirring direction is opposite to that of the stirring rod, thereby achieving multi-directional stirring, which is conducive to sufficient contact between the gas and the treatment liquid.

[0138] As a further optimized embodiment of the invention, the high temperature resistant gas collecting hood 2 includes:

[0139] A lifting air box 202 is connected to the top end of the first pipe 6;

[0140] A folding suction head 201 is rotatably connected to the top of the lifting air box 202 and is connected to the top of the lifting air box 202 via a hose 203. The folding suction head 201 has a first suction groove 3 and a second suction groove 4 on both sides.

[0141] The sealing assembly is used to seal the first suction groove 3 and connect the second suction groove 4 for suction when the folding suction head 201 is unfolded.

[0142] It should be understood that when kiln bricks are not being placed, there is no need to suck air. The lifting air box 202 drives the folded suction head to the back of the mobile kiln exhaust platform 1 to keep the top of the mobile kiln exhaust platform 1 neat, reduce space occupation, and facilitate storage.

[0143] When air suction testing is required, the gas box is raised and the foldable suction head 201 is kept folded, so that the first air suction slot 3 faces the placement surface of the mobile kiln exhaust platform 1, which is conducive to collecting gas for testing, realizing testing while reducing space occupation;

[0144] When harmful substances are detected in the gas collected at the top surface of the mobile kiln exhaust platform 1, the folding suction head 201 is controlled to flip and unfold. During the flipping and unfolding process, the first suction groove 3 is sealed by the sealing component, and the second suction groove 4 is connected for suction, so that the suction end is located above the mobile kiln exhaust platform 1, which is more conducive to fully collecting the gas above the mobile kiln exhaust platform 1 and is conducive to reducing the diffusion of harmful gases generated by the kiln bricks placed on the mobile kiln exhaust platform 1 in the environmental space.

[0145] Specifically, a telescopic pipe section is provided on a side of the first pipe 6 close to the high-temperature resistant gas collecting hood 2 to provide telescopic requirements for the movement of the lifting air box 202 .

[0146] Specifically, the sealing component includes:

[0147] The sliding sealing cover 22 has two sides that are in contact and sealed with the inner wall of the folding suction head 201, and one end of the sliding sealing cover 22 is connected to the hose 203. The sliding sealing cover 22 also has two sides that are respectively provided with a first connecting groove 2201 corresponding to the first suction groove 3 and a second connecting groove 2202 corresponding to the second suction groove 4.

[0148] The adjustment component includes an electric telescopic rod 23, which is fixedly installed at the bottom end of the back of the mobile kiln exhaust platform 1. The telescopic end of the electric telescopic rod 23 is fixedly connected to a linkage slot block 24. The linkage slot block 24 includes an inclined slot 2401 and a yielding transverse slot 2402. A linkage pin 26 is slidingly provided in the linkage slot block 24, and the linkage pin 26 is fixedly connected to the side wall of the sliding sealing cover 22.

[0149] An elastic telescopic rod 25 is fixedly connected between the bottom end of the lifting air box 202 and the bottom end of the back side of the mobile kiln exhaust platform 1 to provide elastic supporting force for the lifting air box 202.

[0150] It should be understood that when no kiln bricks are placed on the mobile kiln exhaust platform 1, Figure 13As shown, in the folding suction head 201 is in the folded state, and the whole folding suction head 201 is stored in the back of the mobile kiln exhaust platform 1, in this state, the first suction groove 3 is in butt joint communication with the first communication groove 2201, the second suction groove 4 is staggered with the second communication groove 2202, the second suction groove 4 is blocked by the sliding sealing cover 22, the sealing sliding sealing cover 22 is supported by the linkage pin 26, the linkage pin 26 is supported by the inclined groove 2401 of the linkage groove block 24, and the stability is maintained.

[0151] When it is necessary to suck air and detect the gas, the electric telescopic rod 23 is started to push the linkage groove block 24 to rise, under the support of the elastic telescopic rod 25, the lifting air tank 202 will rise synchronously, and will not be pushed by the linkage groove block 24, until the first suction groove 3 and the folding suction head 201 are completely exposed, at this time, the elastic telescopic rod 25 is elongated to the longest distance, the first suction groove 3 is in butt joint communication with the first communication groove 2201, and the second suction groove 4 is staggered with the second communication groove 2202 and is blocked by the sealing cover, after the suction head is raised, the air suction machine 5 is started, under the action of the suction force transmitted by the hose 203, negative pressure will be generated in the sealing cover, and external gas will enter the sliding sealing cover 22 through the first suction groove 3, the gas in the sliding sealing cover 22 will enter the lifting air tank 202 through the hose 203, and the gas in the lifting air tank 202 will be guided to the air suction machine 5 through the first pipeline 6, and will flow through the second pipeline 11 to be detected by the gas detector 12;

[0152] When harmful substances are detected, the electric telescopic rod 23 is started to continue to push the linkage groove block 24, the inclined groove 2401 of the linkage groove block 24 will push the linkage pin 26 to move, and drive the folding suction head 201 to overturn and unfold, until it is unfolded to the state as shown in the figure Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, in the folding suction head 201 is in the folded state, and the whole folding suction head 201 is stored in the back of the mobile kiln exhaust platform 1, in this state, the first suction groove 3 is in butt joint communication with the first communication groove 2201, the second suction groove 4 is staggered with the second communication groove 2202, the second suction groove 4 is blocked by the sliding sealing cover 22, the sealing sliding sealing cover 22 is supported by the linkage pin 26, the linkage pin 26 is supported by the inclined groove 2401 of the linkage groove block 24, and the stability is maintained.

[0153] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A device for recycling and treating waste gas from brick making, comprising a mobile kiln exhaust platform (1), characterized in that: Also includes: A high-temperature resistant gas collecting hood (2), the high-temperature resistant gas collecting hood (2) being used to absorb exhaust gas generated by kiln bricks placed on the top of the mobile kiln exhaust platform (1); Aspirator (5); A first pipe (6), the first pipe (6) passes through the mobile kiln exhaust platform (1), and the two ends are respectively connected to the air inlet end of the air suction machine (5) and the high-temperature resistant air collecting hood (2); An exhaust gas treatment component, comprising a treatment tank (7) located inside a mobile kiln exhaust platform (1) and storing a certain amount of treatment liquid, and a nozzle (10) disposed in the treatment tank (7) and located above the liquid level of the treatment liquid for spraying the treatment agent; a second pipe (11), the second pipe (11) passing through the processing tank (7), one end of the second pipe being located inside the processing tank (7) and the other end being connected to the air outlet of the air suction machine (5); a gas detector (12), the gas detector (12) being connected to the surface of the second pipe (11) and being used to detect gaseous substances passing through the second pipe (11); a liquid injection device, the liquid injection device being used to deliver the treatment liquid to the nozzle (10) while adjusting the height of the liquid level in the treatment tank (7); The controller (13) is used to control the liquid injection device to inject the treatment liquid into the nozzle (10) according to the harmful gas substance information detected by the gas detector (12), and adjust the height of the liquid level in the treatment tank (7) to be higher than the gas outlet end.

2. The device for recycling and treating waste gas from brick making according to claim 1, characterized in that: The processing tank (7) includes a processing space (701) and a liquid storage space (702), the gas outlet end of the second pipe (11) is located at the bottom end of the processing space (701), and further includes an external exhaust pipe (9), one end of the external exhaust pipe (9) is connected to the top end of the processing tank (7), and the other end is connected to the outer wall of the mobile kiln exhaust platform (1).

3. The device for recycling and treating waste gas from brick making according to claim 2, characterized in that: A filter screen plate (8) is provided between the processing space (701) and the liquid storage space (702).

4. The device for recycling and treating waste gas from brick making according to claim 2, characterized in that: The liquid injection device comprises: a liquid storage tank (14), wherein the liquid storage tank (14) stores a treatment liquid; A pumping device, the pumping device is used to pump the treatment liquid in the liquid storage tank (14) to the nozzle (10); a connecting pipe (15), the two ends of which are respectively connected to the bottom end of the liquid storage tank (14) and the liquid storage space (702), so as to maintain the connection between the bottom end of the liquid storage tank (14) and the bottom end of the processing tank (7); A liquid replenishing device is used to replenish the treatment liquid in the liquid storage tank (14) to adjust the liquid level of the treatment liquid in the liquid storage tank (14) and the treatment tank (7).

5. The device for recycling and treating waste gas from brick making according to claim 4, characterized in that: The pumping device comprises: A first water pump (16), wherein the water inlet of the first water pump (16) extends to the bottom end of the liquid storage tank (14) through a third pipe (17), and the water outlet of the first water pump (16) is connected to the nozzle (10) through a fourth pipe (18).

6. The device for recycling and treating waste gas from brick making according to claim 5, characterized in that: The fluid replenishing device includes a fluid replenishing tank (19), wherein the fluid replenishing tank (19) stores a treatment fluid; A second water pump (20), wherein the liquid inlet end of the second water pump (20) is connected to the bottom end of the side of the liquid replenishing tank (19), and the liquid outlet end of the second water pump (20) is connected to the liquid storage tank (14), so as to replenish the treatment liquid in the liquid replenishing tank (19) into the liquid storage tank (14).

7. The device for recycling and treating waste gas from brick making according to claim 6, characterized in that: The nozzle (10) is a rotatable nozzle (10), and the nozzle (10) comprises: A communication shell (1001), wherein the top end of the communication shell (1001) is connected to a fourth pipe (18); an impeller (1002), the impeller (1002) being rotatably connected to the inner wall of the communicating shell (1001); A rotating head (1003), the rotating head (1003) is rotatably connected to the bottom end of the connecting shell (1001), and a plurality of spray heads (1004) distributed in an annular array are fixedly connected on the side wall; A linkage shaft (1005) is connected to the rotating head (1003) and the impeller (1002) respectively, so as to drive the rotating head (1003) to rotate synchronously with the impeller (1002).

8. The device for recycling and treating waste gas from brick making according to claim 7, characterized in that: The invention also comprises a rotary exhaust head (21), wherein the rotary exhaust head (21) comprises: an annular body (2101), the annular body (2101) being located at the inner bottom end of the processing space (701) and being in communication with the second pipe (11); an upper sealing cover (2102), the upper sealing cover (2102) being in contact and sealed on the top of the annular body (2101); An exhaust hood (2103), the exhaust hood (2103) is rotatably connected to the bottom of the annular body (2101), and a plurality of air outlet pipes (2104) distributed in a circular array are fixedly connected to the side wall; A lower sealing cover (2105), the lower sealing cover (2105) contacts and seals the bottom of the exhaust cover (2103), and a side wall of the lower sealing cover (2105) is fixedly connected to a plurality of stirring rods (2106) distributed in a circular array; The bottom end of the linkage shaft (1005) penetrates into the interior of the rotary exhaust head (21), and the linkage shaft (1005) is fixedly connected to the upper sealing cover (2102) and the lower sealing cover (2105) respectively.

9. The device for recycling and treating waste gas from brick making according to claim 8, characterized in that: The air outlet pipe (2104) is arranged at an angle so as to push the exhaust hood (2103) to rotate while exhausting the air, thereby performing mobile exhaust.

10. The device for recycling and treating waste gas from brick making according to claim 9, characterized in that: The high temperature resistant gas collecting hood (2) comprises: a lifting air box (202), the lifting air box (202) being in communication with the top end of the first pipe (6); A folding suction head (201), the folding suction head (201) is rotatably connected to the top of the lifting air box (202), and is connected to the top of the lifting air box (202) via a hose (203), and the two sides of the folding suction head (201) are respectively provided with a first suction groove (3) and a second suction groove (4); The sealing component is used for sealing the first suction groove (3) and connecting the second suction groove (4) to suction when the folding suction head (201) is unfolded.

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