A biological feed fermentation tank tail gas treatment device

Abstract

The present application relates to biological fermentation tail gas treatment technical field, especially to a kind of biological feed fermentation tank tail gas treatment device.The biological feed fermentation tank tail gas treatment device includes fermentation component, tail gas treatment mechanism and air extraction component, tail gas treatment component includes outer processing shell, connecting piece, inner processing shell, blow-off pipe and outer cover, scraping component includes detent, rotating part, four bottom scraping parts and top scraping part, receiving discharge component includes bearing part and filling piece.Tail gas treatment component is used to neutralize acidic gas in tail gas, rotating part rotates when tail gas enters into inner processing shell, so that bottom scraping part can scrape off the impurities at the bottom of inner processing shell, so that top scraping part can scrape off the impurities accumulated on the top of alkaline treatment liquid, bearing part can collect the impurities accumulated on the top of alkaline treatment liquid, move downward after accumulating to a certain weight, so that filling piece moves downward, and then discharge the impurities at the bottom of inner processing shell.

Description

Technical Field

[0001] This invention relates to the field of bio-fermentation exhaust gas treatment technology, and in particular to a bio-feed fermentation tank exhaust gas treatment device. Background Technology

[0002] The exhaust gas treatment system for biological feed fermenters is a specialized device designed to treat the exhaust gas generated during the fermentation process of biological feed, reducing pollutant emissions, eliminating odors, preventing environmental pollution, and ensuring compliance with environmental standards. The core function of this system is to treat the exhaust gas using physical, chemical, or biological methods to ensure it meets national or local emission standards before being released into the atmosphere. Currently, these systems require manual replenishment of the neutralizing solution, which needs to be replaced after prolonged use. Summary of the Invention

[0003] Therefore, it is necessary to provide a biological feed fermentation tank exhaust gas treatment device to solve at least one of the above-mentioned technical problems.

[0004] A biological feed fermenter exhaust gas treatment device includes a fermentation component, an exhaust gas treatment mechanism, and an extraction component. The fermentation component is placed on the ground. The side wall of the exhaust gas treatment mechanism is connected to the fermentation component. The extraction component is connected to the top of the exhaust gas treatment mechanism. The exhaust gas treatment mechanism includes a support component, an exhaust gas treatment component, a feeding component, a scraping component, and a receiving and discharging component. The support component is placed on the ground. The exhaust gas treatment component is installed on the top of the support component (40). The exhaust gas treatment component includes an outer treatment shell, a connector, an inner treatment shell, a drain pipe, and an outer cover. The outer treatment shell is installed on the top of the support component. The connector is installed on the inner side wall of the outer treatment shell. The inner treatment shell is installed inside the outer treatment shell and is secured inside the connector. The drain pipe is inserted into the bottom of the outer treatment shell. The outer cover is located on top of the outer treatment shell. The scraping assembly is installed inside the inner treatment shell. A storage space is formed between the outer and inner treatment shells. The discharge receiving assembly is installed at the bottom of the storage space. The scraping assembly includes a locking component, a rotating component, four bottom scraping components, and a top scraping component. The locking component is fixedly installed on the middle side wall of the inner treatment shell. The middle part of the rotating component is rotatably locked inside the locking component. The tops of the four bottom scraping components are fixedly connected to the bottom side wall of the rotating component. The top scraping component is slidably locked on the top of the rotating component. The discharge receiving assembly includes a load-bearing component and a filling component. The load-bearing component is installed at the bottom of the storage space. The middle part of the filling component is filled into the bottom of the inner treatment shell, and the periphery of the filling component is connected to the load-bearing component. The inner treatment shell contains alkaline treatment liquid.

[0005] The fermentation unit is used for fermenting biological feed, the gas extraction unit is used to extract the exhaust gas from the fermentation tank, the exhaust gas treatment unit is used to neutralize the acidic gases in the exhaust gas, the feeding unit can automatically replenish the alkaline treatment liquid in the inner treatment shell, the rotating part rotates when the exhaust gas enters the inner treatment shell, which in turn enables the bottom scraper to scrape out the impurities at the bottom of the inner treatment shell, and enables the top scraper to scrape out the impurities accumulated on the top of the alkaline treatment liquid, the load-bearing part can collect the impurities accumulated on the top of the alkaline treatment liquid, and after accumulating a certain weight, it moves downward, which causes the packing part to move downward, thereby discharging the impurities in the inner treatment shell.

[0006] In one embodiment, the fermentation assembly includes a support, a fermenter, a discharge pipe, an exhaust pipe, and a feeding valve. The support is placed on the ground, the fermenter is installed on top of the support, the discharge pipe is inserted at the bottom of the fermenter, one end of the exhaust pipe is inserted at the top of the fermenter, and the feeding valve is installed at the top of the fermenter.

[0007] In one embodiment, the support assembly includes three support rods, the tops of which are fixedly connected to the bottom of the outer processing housing, and the bottom of each support rod is connected to a support pad.

[0008] In one embodiment, the locking component includes four fixing posts and a fixing collar. One end of each of the four fixing posts is fixedly connected to the middle of the inner sidewall of the inner processing shell, and the fixing collar is fixedly connected to the other end of the four fixing posts.

[0009] In one embodiment, the rotating component includes a rotating rod, an upper stirring fan, and a lower driving fan. The middle part of the rotating rod is rotatably engaged in a fixed collar. The upper stirring fan is fixedly sleeved on the upper end of the rotating rod, and the lower driving fan is fixedly sleeved on the lower end of the rotating rod. The middle part of the exhaust pipe passes through the outer processing shell and the inner processing shell, and the other end of the exhaust pipe faces the top of the lower driving fan.

[0010] In one embodiment, four bottom scraping components are fixedly mounted on the bottom sidewall of the rotating rod, and the four bottom scraping components are located below the lower drive fan. Each bottom scraping component includes an inclined connecting rod and a bottom scraping brush. The upper end of the connecting rod is fixedly connected to the bottom sidewall of the rotating rod, the bottom of the bottom scraping brush abuts against the bottom sidewall of the inner processing shell, and the top of the bottom scraping brush is fixedly connected to the lower end of the connecting rod.

[0011] In one embodiment, the top scraper is slidably sleeved on the top of the rotating rod. The top sidewall of the rotating rod has two sliding grooves. The top scraper includes a sliding sleeve and four scraper rods. The bottom of the sliding sleeve has a sleeve groove. Two locking blocks are installed at the bottom of the sidewall of the sleeve groove. The two locking blocks are slidably locked in the two sliding grooves. One end of each of the four scraper rods is fixedly connected to the top sidewall of the sliding sleeve. A float is installed at the bottom of each scraper rod. The top of the inner processing shell has four locking slots. A locking post is installed at the other end of each scraper rod. The locking post is locked in the locking slot.

[0012] In one embodiment, the load-bearing component includes a fixed ring, multiple telescopic components, and the load-bearing ring. The fixed ring is fixedly connected to the bottom of the inner sidewall of the outer processing shell. The bottoms of the multiple telescopic components are all installed on the top of the fixed ring. The load-bearing ring is slidably installed in the storage space, and the bottom of the load-bearing ring is fixedly connected to the top of the multiple telescopic components. A water-receiving groove is provided on the top of the load-bearing ring, and a drainage groove is provided on the sidewall of the load-bearing ring adjacent to the inner processing shell. The drainage groove is connected to the water-receiving groove.

[0013] In one embodiment, the filling component includes multiple arc-shaped connecting columns, an arc-shaped receiving base plate, and a filling block. The tops of the multiple arc-shaped connecting columns are fixedly connected to the bottom of the load-bearing ring. The top periphery of the arc-shaped receiving base plate is fixedly connected to the bottom of the multiple connecting columns. The filling block is fixedly installed at the top center of the arc-shaped receiving base plate, and the top of the filling block is inserted into the bottom of the inner treatment shell. A water outlet groove is provided at the bottom of the filling block. Multiple drop grooves are provided at the top of the arc-shaped receiving base plate, and the multiple drop grooves penetrate through the upper and lower side walls of the arc-shaped receiving base plate.

[0014] In one embodiment, the air extraction assembly includes a first air extraction pipe, an air extraction pump, and a second air extraction pipe. One end of the first air extraction pipe is inserted into the top of the outer cover, one end of the air extraction pump is fixedly connected to the other end of the first air extraction pipe, and one end of the second air extraction pipe is fixedly connected to the other end of the air extraction pump. The feeding assembly includes a fixing rod, an automatic feeding tank, and a feeding pipe. One end of the fixing rod is fixedly connected to the side wall of the outer processing shell, the automatic feeding tank is fixedly connected to the other end of the fixing rod, the upper end of the feeding pipe is inserted into the bottom of the automatic feeding tank, and the lower end of the feeding pipe passes through the outer processing shell and the inner processing shell in sequence.

[0015] This invention incorporates scrapers. After the locking pin disengages from the locking slot, the other end of the exhaust pipe blows exhaust gas downwards towards the driving fan. This exhaust gas powers the driving fan to rotate, causing the rotating rod to follow its rotation. The sliding sleeve also rotates with the rotating rod, and four scrapers follow the sliding sleeve's rotation. These four scrapers remove impurities and small feed particles from the top of the alkaline treatment liquid. The scrapers cause these impurities and small feed particles to flow into the collection space, while the alkaline treatment liquid carrying these particles falls into the collection space. This allows the exhaust gas, after reacting with the alkaline treatment liquid, to better pass through the top of the alkaline treatment liquid and enter the first extraction pipe, preventing severe accumulation of impurities and small feed particles on the top of the alkaline treatment liquid, which would otherwise hinder the exhaust gas's passage.

[0016] By setting up a load-bearing ring, after the alkaline treatment solution carrying impurities and small feed particles falls into the storage space, the alkaline treatment solution is collected at the top of the load-bearing ring. As the weight borne by the load-bearing ring increases, multiple telescopic components move downward and retract. The load-bearing ring moves downward, and after the drainage trough disengages from the outer wall of the inner treatment shell and comes into contact with it, the alkaline treatment solution directly above the load-bearing ring will enter the storage space located below the load-bearing ring through the water collection trough and the drainage trough. When the load-bearing ring moves downward, multiple connected columns move downward with the load-bearing ring, and the arc-shaped receiving base plate and the filling block move downward with the multiple connected columns, so that the large feed particles accumulated at the bottom of the inner treatment shell can flow out from the bottom center of the inner treatment shell, which is used to discharge the large feed particles accumulated at the bottom of the inner treatment shell, eliminating the need for frequent replacement of the alkaline treatment solution.

[0017] By incorporating a bottom scraper, which rotates along with the rotating rod as the fan rotates, the scraper cleans the bottom of the inner treatment chamber. This accelerates the flow of large feed particles from the bottom center of the inner treatment chamber, preventing them from adhering to the bottom. When the automatic replenishment tank adds alkaline treatment solution, the scraper and rotating rod speed up the mixing of the solution, ensuring a uniform concentration throughout and maximizing its utilization. This reduces the need for frequent solution replacements.

[0018] This invention has a clever structure that eliminates the need for manual cleaning of impurities in the alkaline treatment solution. When the alkaline treatment solution reaches a certain height, it can discharge the impurities adhering to the solution by moving up and down, while automatically replenishing the solution to maintain the neutralization reaction and quickly remove acidic substances from the exhaust gas. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0020] Figure 2 This is a three-dimensional schematic diagram of one embodiment from another perspective.

[0021] Figure 3 This is a cross-sectional view of an embodiment of an exhaust gas treatment mechanism.

[0022] Figure 4 This is a three-dimensional schematic diagram of a portion of the exhaust gas treatment components in one embodiment.

[0023] Figure 5 This is a three-dimensional schematic diagram of an embodiment of a discharge receiving component.

[0024] Figure 6 This is a perspective view of a scraping component according to one embodiment.

[0025] Figure 7 As an example Figure 3 Enlarged diagram of point A in the middle.

[0026] In the diagram: 10. Fermentation component; 11. Support component; 12. Fermentation tank; 13. Discharge pipe; 14. Exhaust pipe; 15. Feeding valve; 20. Tail gas treatment mechanism; 30. Vacuum assembly; 31. First vacuum pipe; 32. Vacuum pump; 33. Second vacuum pipe; 40. Support assembly; 41. Support rod; 42. Support pad; 50. Tail gas treatment assembly; 51. Outer treatment shell; 52. Connector; 53. Inner treatment shell; 54. Drain pipe; 55. Outer cover; 56. Storage space; 530. Slot; 60. Feeding assembly; 61. Fixing rod; 62. Automatic feeding tank; 63. Feeding pipe; 70. Scraper assembly; 71. Locking component; 72. Rotating component; 73. Bottom scraper 74. Top scraper; 710. Fixed column; 711. Fixed collar; 720. Rotating rod; 721. Upper stirring fan; 722. Lower driving fan; 723. Sliding groove; 730. Connecting rod; 731. Bottom scraper brush; 740. Sliding sleeve; 741. Scraper rod; 742. Sleeve groove; 743. Locking block; 744. Floating block; 745. Locking column; 80. Receiving and discharging assembly; 81. Load-bearing component; 82. Stuffing component; 810. Fixed ring; 811. Telescopic component; 812. Load-bearing ring; 813. Water receiving trough; 814. Drainage trough; 820. Connecting column; 821. Arc-shaped receiving base plate; 822. Stuffing block; 823. Water outlet trough; 824. Drop trough. Detailed Implementation

[0027] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] One embodiment provided by the present invention, such as Figures 1 to 7 The diagram shows a biological feed fermentation tank exhaust gas treatment device, comprising a fermentation component 10, an exhaust gas treatment mechanism 20, and an extraction component 30. The fermentation component 10 is placed on the ground. The side wall of the exhaust gas treatment mechanism 20 is connected to the fermentation component 10, and the extraction component 30 is connected to the top of the exhaust gas treatment mechanism 20. The exhaust gas treatment mechanism 20 includes a support component 40, an exhaust gas treatment component 50, a feeding component 60, a scraping component 70, and a receiving and discharging component 80. The support component 40 is placed on the ground, and the exhaust gas treatment component 50 is installed on top of the support component 40. The exhaust gas treatment component 50 includes an outer treatment shell 51, a connector 52, an inner treatment shell 53, a drain pipe 54, and an outer cover 55. The outer treatment shell 51 is installed on top of the support component 40, the connector 52 is installed on the inner side wall of the outer treatment shell 51, the inner treatment shell 53 is installed inside the outer treatment shell 51 and is secured inside the connector 52, and the drain pipe 54 is inserted into the outer treatment shell 51. The bottom of the outer processing shell 51 is covered by an outer cover 55. The scraping assembly 70 is installed inside the inner processing shell 53. A storage space 56 is formed between the outer processing shell 51 and the inner processing shell 53. The receiving and discharging assembly 80 is installed at the bottom of the storage space 56. The scraping assembly 70 includes a locking member 71, a rotating member 72, four bottom scraping members 73, and a top scraping member 74. The locking member 71 is fixedly installed on the middle side wall of the inner processing shell 53, and the rotating member 72 is rotatably locked in the middle. Inside the locking component 71, the tops of the four bottom scraping components 73 are fixedly connected to the bottom sidewall of the rotating component 72. The top scraping component 74 is slidably locked onto the top of the rotating component 72. The receiving and discharging component 80 includes a load-bearing component 81 and a filling component 82. The load-bearing component 81 is installed at the bottom of the storage space 56. The middle part of the filling component 82 is filled into the bottom of the inner treatment shell 53, and the periphery of the filling component 82 is connected to the load-bearing component 81. The inner treatment shell 53 contains an alkaline treatment liquid.

[0031] Fermentation component 10 is used for fermentation of biological feed, gas extraction component 30 is used to extract exhaust gas from the fermentation tank, exhaust gas treatment component 50 is used to neutralize acidic gases in the exhaust gas, feeding component 60 can automatically replenish alkaline treatment liquid in inner treatment shell 53, rotating component 72 rotates when exhaust gas enters inner treatment shell 53, thereby enabling bottom scraper 73 to scrape out impurities at the bottom of inner treatment shell 53, enabling top scraper 74 to scrape out impurities accumulated on top of alkaline treatment liquid, and load-bearing component 81 can collect impurities accumulated on top of alkaline treatment liquid. After accumulating a certain weight, it moves downward, causing packing component 82 to move downward, thereby discharging impurities in inner treatment shell 53.

[0032] like Figure 1 and Figure 2 As shown, the fermentation assembly 10 includes a support 11, a fermentation tank 12, a discharge pipe 13, an exhaust pipe 14, and a feeding valve 15. The support 11 is placed on the ground, the fermentation tank 12 is installed on the top of the support 11, the discharge pipe 13 is inserted into the bottom of the fermentation tank 12, one end of the exhaust pipe 14 is inserted into the top of the fermentation tank 12, and the feeding valve 15 is installed on the top of the fermentation tank 12.

[0033] like Figure 1 and Figure 2 As shown, the support assembly 40 includes three support rods 41, the tops of which are fixedly connected to the bottom of the outer processing shell 51, and a support pad 42 is connected to the bottom of each support rod 41.

[0034] like Figure 3 As shown, the locking component 71 includes four fixing posts 710 and a fixing collar 711. One end of each of the four fixing posts 710 is fixedly connected to the middle of the inner sidewall of the inner processing shell 53, and the fixing collar 711 is fixedly connected to the other end of the four fixing posts 710.

[0035] like Figure 4 and Figure 6 As shown, the rotating component 72 includes a rotating rod 720, an upper stirring fan 721, and a lower driving fan 722. The middle part of the rotating rod 720 is rotatably locked in the fixing collar 711. The upper stirring fan 721 is fixedly sleeved on the upper end of the rotating rod 720. The lower driving fan 722 is fixedly sleeved on the lower end of the rotating rod 720. The middle part of the exhaust pipe 14 passes through the outer processing shell 51 and the inner processing shell 53, and the other end of the exhaust pipe 14 faces the top of the lower driving fan 722.

[0036] like Figures 3 to 6As shown, four bottom scraping parts 73 are fixedly installed on the bottom side wall of the rotating rod 720, and the four bottom scraping parts 73 are located below the lower drive fan 722. Each bottom scraping part 73 includes an inclined connecting rod 730 and a bottom scraping brush 731. The upper end of the connecting rod 730 is fixedly connected to the bottom side wall of the rotating rod 720, the bottom of the bottom scraping brush 731 abuts against the bottom side wall of the inner processing shell 53, and the top of the bottom scraping brush 731 is fixedly connected to the lower end of the connecting rod 730.

[0037] like Figures 3 to 7 As shown, the top scraper 74 is slidably sleeved on the top of the rotating rod 720. The top side wall of the rotating rod 720 has two sliding grooves 723. The top scraper 74 includes a sliding sleeve 740 and four scraper rods 741. The bottom of the sliding sleeve 740 has a sleeve groove 742. Two locking blocks 743 are installed at the bottom of the side wall of the sleeve groove 742. The two locking blocks 743 are slidably locked in the two sliding grooves 723. One end of each of the four scraper rods 741 is fixedly connected to the top side wall of the sliding sleeve 740. A float 744 is installed at the bottom of each scraper rod 741. The top of the inner processing shell 53 has four locking grooves 530. The other end of each scraper rod 741 is equipped with a locking post 745, which is locked in the locking groove 530.

[0038] like Figure 5 As shown, the load-bearing component 81 includes a fixed ring 810, multiple telescopic components 811, and a load-bearing ring 812. The fixed ring 810 is fixedly connected to the bottom of the inner sidewall of the outer processing shell 51. The bottoms of the multiple telescopic components 811 are all installed on the top of the fixed ring 810. The load-bearing ring 812 is slidably installed in the storage space 56, and the bottom of the load-bearing ring 812 is fixedly connected to the top of the multiple telescopic components 811. A water-receiving groove 813 is provided on the top of the load-bearing ring 812. A drainage groove 814 is provided on the sidewall of the load-bearing ring 812 adjacent to the inner processing shell 53. The drainage groove 814 is connected to the water-receiving groove 813.

[0039] like Figure 5 As shown, the filling component 82 includes multiple arc-shaped connecting columns 820, an arc-shaped receiving base plate 821, and a filling block 822. The tops of the multiple arc-shaped connecting columns 820 are fixedly connected to the bottom of the load-bearing ring 812. The top periphery of the arc-shaped receiving base plate 821 is fixedly connected to the bottom of the multiple connecting columns 820. The filling block 822 is fixedly installed at the top center of the arc-shaped receiving base plate 821, and the top of the filling block 822 is inserted into the bottom of the inner processing shell 53. A water outlet groove 823 is opened at the bottom of the filling block 822. Multiple drop grooves 824 are opened at the top of the arc-shaped receiving base plate 821. The multiple drop grooves 824 all penetrate through the upper and lower side walls of the arc-shaped receiving base plate 821.

[0040] like Figures 1 to 2As shown, the air extraction assembly 30 includes a first air extraction pipe 31, an air extraction pump 32, and a second air extraction pipe 33. One end of the first air extraction pipe 31 is inserted into the top of the outer cover 55. One end of the air extraction pump 32 is fixedly connected to the other end of the first air extraction pipe 31. One end of the second air extraction pipe 33 is fixedly connected to the other end of the air extraction pump 32. The material replenishment assembly 60 includes a fixing rod 61, an automatic material replenishment tank 62, and a material replenishment pipe 63. One end of the fixing rod 61 is fixedly connected to the side wall of the outer processing shell 51. The automatic material replenishment tank 62 is fixedly connected to the other end of the fixing rod 61. The upper end of the material replenishment pipe 63 is inserted into the bottom of the automatic material replenishment tank 62, and the lower end of the material replenishment pipe 63 passes through the outer processing shell 51 and the inner processing shell 53 in sequence.

[0041] During installation: The outer processing shell 51 is installed on top of the support assembly 40, the connector 52 is installed on the inner side wall of the outer processing shell 51, the inner processing shell 53 is installed inside the outer processing shell 51, the scraping assembly 70 is installed inside the inner processing shell 53, the receiving and discharging assembly 80 is installed at the bottom of the storage space 56, the locking piece 71 is fixedly installed on the middle side wall of the inner processing shell 53, and the load-bearing piece 81 is installed at the bottom of the storage space 56. The fermentation tank 12 is installed on top of the support assembly 11, the feeding valve 15 is installed on top of the fermentation tank 12, the four bottom scraping pieces 73 are all fixedly installed on the bottom side wall of the rotating rod 720, the bottoms of the multiple telescopic pieces 811 are all installed on the top of the fixing ring 810, the load-bearing ring 812 is slidably installed in the storage space 56, and the filling block 822 is fixedly installed at the top center of the arc-shaped receiving base plate 821.

[0042] In use: 1. The biological feed is fermented in the fermentation tank 12. The exhaust gas produced by fermentation enters the alkaline treatment liquid through the exhaust pipe 14. The large particles of feed carried in the exhaust gas will accumulate at the bottom of the inner treatment shell 53, and the small particles of feed carried in the exhaust gas will float on the top of the alkaline treatment liquid. The hydrogen sulfide contained in the exhaust gas will react with the alkaline treatment liquid to produce sodium sulfide and water. The alkaline treatment liquid in the inner treatment shell 53 will rise. When the alkaline treatment liquid in the inner treatment shell 53 rises to the top of the inner treatment shell 53, the alkaline treatment liquid in the inner treatment shell 53 will push the floating block 744 upward. The locking post 745 will disengage from the abutment of the locking groove 530. The other end of the exhaust pipe 14 faces the top of the lower drive fan 722 and is used to blow the lower drive fan 722 to rotate. The locking post 745 is locked in the locking groove 530 to prevent the lower drive fan 722 from rotating. After the locking pin 745 disengages from the locking slot 530, the other end of the exhaust pipe 14 blows exhaust gas out towards the downward drive fan 722. The exhaust gas is used to drive the downward drive fan 722 to rotate. The rotating rod 720 rotates with the downward drive fan 722, the sliding sleeve 740 rotates with the rotating rod 720, and the four scrapers 741 rotate with the sliding sleeve 740. The four scrapers 741 are used to scrape off impurities and small particles of feed on top of the alkaline treatment liquid, so that the impurities and small particles of feed on top of the alkaline treatment liquid flow into the collection space 56 under the scraping of the scrapers 741. After the alkaline treatment liquid carrying impurities and small particles of feed falls into the collection space 56, the exhaust gas after reacting with the alkaline treatment liquid can better pass through the top of the alkaline treatment liquid and enter the first exhaust pipe 31, preventing the impurities and small particles of feed on top of the alkaline treatment liquid from accumulating severely and preventing the exhaust gas from passing through the top of the alkaline treatment liquid well.

[0043] 2. After the alkaline treatment liquid carrying impurities and small feed particles falls into the collection space 56, the alkaline treatment liquid is collected on the top of the load-bearing ring 812. As the weight borne by the load-bearing ring 812 increases, multiple telescopic parts 811 move downward and retract. The load-bearing ring 812 moves downward, and after the drainage trough 814 disengages from the outer wall of the inner treatment shell 53 and comes into contact with it, the alkaline treatment liquid directly above the load-bearing ring 812 will enter the collection space 56 located below the load-bearing ring 812 through the water collection trough 813 and the drainage trough 814. When the load-bearing ring 812 moves downward, multiple connected columns 820 move downward with the load-bearing ring 812. The arc-shaped receiving base plate 821 and the filling block 822 move downward with the multiple connected columns 820, so that the large feed particles accumulated at the bottom of the inner treatment shell 53 flow out from the bottom center of the inner treatment shell 53 to discharge the large feed particles accumulated at the bottom of the inner treatment shell 53.

[0044] 3. After the large-particle feed flows out from the bottom center of the inner treatment shell 53, it falls onto the arc-shaped receiving plate 821, and then through the water outlet trough 823 and multiple drop troughs 824, finally falling to the bottom of the outer treatment shell 51. Simultaneously, as the packing block 822 moves downwards along with multiple connected columns 820, the automatic feeding tank 62 is activated, replenishing the alkaline treatment solution in the inner treatment shell 53 with a higher purity alkaline treatment solution through the feeding pipe 63. This maintains the concentration of the alkaline treatment solution and prevents it from decreasing, which would otherwise fail to neutralize the acidic gases in the exhaust gas. When the liquid weight on the load-bearing ring 812 can no longer compress the multiple telescopic components 811, the multiple telescopic components 811 return to their original position, causing the load-bearing ring 812 to return to its original position. After the large feed particles flow out from the bottom center of the inner treatment shell 53, the height of the alkaline treatment liquid inside the inner treatment shell 53 decreases. The top scraper 74 moves downwards under gravity, and finally the clamping post 745 enters the clamping slot 530, stopping the rotation of the rotating rod 720. The waste alkaline treatment liquid at the bottom of the outer treatment shell 51 can be discharged by opening the drain pipe 54. The concentration of the alkaline treatment liquid can be maintained without manual cleaning of the top and bottom of the inner treatment shell 53 or manual replenishment, allowing the alkaline treatment liquid to effectively treat acidic gases in the exhaust gas without frequent replacement.

[0045] 4. When the rotating rod 720 drives the fan 722 to rotate, the bottom scraper 73 rotates with the rotating rod 720 to clean the bottom of the inner treatment shell 53 and accelerate the flow of large feed particles from the bottom center of the inner treatment shell 53, preventing large feed particles from remaining attached to the bottom of the inner treatment shell 53. When the automatic replenishment tank 62 replenishes the alkaline treatment solution, the bottom scraper 73 and the rotating rod 72 can accelerate the mixing of the alkaline treatment solution, thereby ensuring a uniform concentration throughout the alkaline treatment solution, fully utilizing the alkaline treatment solution, and thus improving the utilization rate of the alkaline treatment solution, eliminating the need for frequent replacement of the alkaline treatment solution.

[0046] This invention, by setting scraper rods 741, allows exhaust gas to be blown out from the other end of the exhaust pipe 14 towards the downward-driving fan 722 after the locking post 745 disengages from the locking groove 530. The exhaust gas is used to drive the downward-driving fan 722 to rotate, the rotating rod 720 rotates with the downward-driving fan 722, the sliding sleeve 740 rotates with the rotating rod 720, and the four scraper rods 741 rotate with the sliding sleeve 740. The four scraper rods 741 are used to scrape off impurities and small particles of feed on the top of the alkaline treatment liquid, so that the impurities and small particles of feed on the top of the alkaline treatment liquid flow into the collection space 56 under the scraping action of the scraper rods 741. The alkaline treatment liquid carrying impurities and small particles of feed falls into the collection space 56, so that the exhaust gas after reacting with the alkaline treatment liquid can better pass through the top of the alkaline treatment liquid and enter the first exhaust pipe 31, preventing the impurities and small particles of feed on the top of the alkaline treatment liquid from accumulating severely and preventing the exhaust gas from passing through the top of the alkaline treatment liquid effectively.

[0047] By setting up a load-bearing ring 812, after the alkaline treatment liquid carrying impurities and small particle feed falls into the storage space 56, the alkaline treatment liquid is collected on the top of the load-bearing ring 812. As the weight borne by the load-bearing ring 812 increases, multiple telescopic parts 811 move downward and retract, the load-bearing ring 812 moves downward, and after the drainage trough 814 disengages from the outer wall of the inner treatment shell 53 and comes into contact with it, the alkaline treatment liquid directly above the load-bearing ring 812 will enter the storage space 56 located below the load-bearing ring 812 through the water collection trough 813 and the drainage trough 814. When the load-bearing ring 812 moves downward, multiple connected columns 820 move downward with the load-bearing ring 812, and the arc-shaped receiving base plate 821 and the filling block 822 move downward with the multiple connected columns 820, so that the large particle feed accumulated at the bottom of the inner treatment shell 53 flows out from the bottom center of the inner treatment shell 53 to discharge the large particle feed accumulated at the bottom of the inner treatment shell 53.

[0048] By incorporating a bottom scraper 73, when the rotating rod 720 drives the fan 722 to rotate, the bottom scraper 73 rotates with the rotating rod 720 to clean the bottom of the inner treatment shell 53 and accelerate the flow of large feed particles from the bottom center of the inner treatment shell 53, preventing large feed particles from remaining attached to the bottom of the inner treatment shell 53. When the automatic replenishment tank 62 replenishes the alkaline treatment solution, the bottom scraper 73 and the rotating rod 72 can accelerate the mixing of the alkaline treatment solution, thereby ensuring a uniform concentration throughout the alkaline treatment solution, fully utilizing the alkaline treatment solution, and thus improving the utilization rate of the alkaline treatment solution.

[0049] This invention has a clever structure that eliminates the need for manual cleaning of impurities in the alkaline treatment solution. When the alkaline treatment solution reaches a certain height, it can discharge the impurities adhering to the solution by moving up and down, while automatically replenishing the solution to maintain the neutralization reaction and quickly remove acidic substances from the exhaust gas.

[0050] All possible combinations of the various technical features in the above embodiments are described; however, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A device for treating exhaust gas from a biological feed fermentation tank, characterized in that: The utility model provides a fermentation assembly (10), tail gas treatment mechanism (20) and air extraction component (30), fermentation assembly (10) places on the ground, the lateral wall of tail gas treatment mechanism (20) is connected with fermentation assembly (10), air extraction component (30) is connected with the top of tail gas treatment mechanism (20), tail gas treatment mechanism (20) includes support assembly (40), tail gas treatment assembly (50), feeding assembly (60), scraping assembly (70) and receiving and discharging assembly (80), support assembly (40) places on the ground, tail gas treatment assembly (50) is installed at the top of support assembly (40), tail gas treatment assembly (50) includes outer processing shell (51), connecting piece (52), inner processing shell (53), blowdown pipe (54) and outer cover (55), outer processing shell (51) is installed at the top of support assembly (40), connecting piece (52) is installed at the inner lateral wall of outer processing shell (51), inner processing shell (53) is installed at the inside of outer processing shell (51), and inner processing shell (53) is clamped in the inside of connecting piece (52), blowdown pipe (54) is inserted at the bottom of outer processing shell (51), outer cover (55) is covered at the top of outer processing shell (51), scraping assembly (70) is installed at the inside of inner processing shell (53), and the receiving space (56) is formed between outer processing shell (51) and inner processing shell (53), receiving and discharging assembly (80) is installed at the bottom of receiving space (56), scraping assembly (70) includes detent (71), rotating part (72), four bottom scraping parts (73) and top scraping part (74), detent (71) is fixedly installed at the middle lateral wall of inner processing shell (53), the middle part of rotating part (72) is rotatably clamped in the inside of detent (71), the top of four bottom scraping parts (73) is fixedly connected with the bottom lateral wall of rotating part (72), and top scraping part (74) is clamped on the top of rotating part (72) and slides up and down, receiving and discharging assembly (80) includes bearing part (81) and filling part (82), bearing part (81) is installed at the bottom of receiving space (56), and the middle part of filling part (82) is filled in the bottom of inner processing shell (53), and the periphery of filling part (82) is connected with bearing part (81), and the alkaline treatment liquid is received in inner processing shell (53); Bearing part (81) includes fixed ring (810), a plurality of telescopic parts (811) and bearing ring (812), fixed ring (810) is fixedly connected with the inner lateral wall bottom of outer processing shell (51), the bottom of a plurality of telescopic parts (811) is installed at the top of fixed ring (810), bearing ring (812) is slidably installed in receiving space (56), and the bottom of bearing ring (812) is fixedly connected with the top of a plurality of telescopic parts (811), and the top of bearing ring (812) is provided with water receiving groove (813), and the side wall of bearing ring (812) adjacent to inner processing shell (53) is provided with drain groove (814), and drain groove (814) is communicated with water receiving groove (813); The filling piece (82) comprises a plurality of arc-shaped connecting columns (820), an arc-shaped receiving bottom plate (821) and a filling block (822), the top of each of the plurality of arc-shaped connecting columns (820) is fixedly connected with the bottom of the load-bearing ring (812), the top periphery of the arc-shaped receiving bottom plate (821) is fixedly connected with the bottom of the plurality of connecting columns (820), the filling block (822) is fixedly installed at the top center of the arc-shaped receiving bottom plate (821), the top of the filling block (822) is inserted into the bottom of the inner processing shell (53), the bottom of the filling block (822) is provided with a water outlet groove (823), and the top of the arc-shaped receiving bottom plate (821) is provided with a plurality of falling grooves (824) penetrating through the upper and lower sidewalls of the arc-shaped receiving bottom plate (821).

2. The biological feed fermentation tank off-gas treatment device according to claim 1, characterized by: The fermentation assembly (10) comprises a support (11), a fermentation tank (12), a discharge pipe (13), an exhaust pipe (14) and a feeding valve (15), the support (11) is placed on the ground, the fermentation tank (12) is installed at the top of the support (11), the discharge pipe (13) is inserted into the bottom of the fermentation tank (12), one end of the exhaust pipe (14) is inserted into the top of the fermentation tank (12), and the feeding valve (15) is installed at the top of the fermentation tank (12).

3. The biological feed fermenter off-gas treatment apparatus according to claim 2, characterized by: The support assembly (40) comprises three support rods (41), the top of each of the three support rods (41) is fixedly connected with the bottom of the outer processing shell (51), and the bottom of each support rod (41) is connected with a support pad (42).

4. The biological feed fermenter off-gas treatment apparatus according to claim 3, characterized by: The clamping piece (71) comprises four fixed columns (710) and a fixed sleeve ring (711), one end of each of the four fixed columns (710) is fixedly connected with the middle of the inner sidewall of the inner processing shell (53), and the fixed sleeve ring (711) is fixedly connected with the other end of the four fixed columns (710).

5. The biological feed fermenter off-gas treatment apparatus according to claim 4, characterized by: The rotating piece (72) comprises a rotating rod (720), an upper stirring fan (721) and a lower driving fan (722), the middle of the rotating rod (720) is rotatably clamped in the fixed sleeve ring (711), the upper stirring fan (721) is fixedly sleeved on the upper end of the rotating rod (720), the lower driving fan (722) is fixedly sleeved on the lower end of the rotating rod (720), the middle of the exhaust pipe (14) penetrates through the outer processing shell (51) and the inner processing shell (53), and the other end of the exhaust pipe (14) faces the top of the lower driving fan (722).

6. The biological feed fermenter off-gas treatment apparatus according to claim 5, characterized by: The four bottom scraping pieces (73) are fixedly installed on the bottom sidewall of the rotating rod (720) and are located below the lower driving fan (722), each bottom scraping piece (73) comprises an inclined connecting rod (730) and a bottom scraping brush (731), the upper end of the connecting rod (730) is fixedly connected with the bottom sidewall of the rotating rod (720), the bottom of the bottom scraping brush (731) abuts against the bottom sidewall of the inner processing shell (53), and the top of the bottom scraping brush (731) is fixedly connected with the lower end of the connecting rod (730).

7. The biological feed fermenter off-gas treatment apparatus according to claim 6, characterized by: The top scraping piece (74) is slidably sleeved at the top of the rotating rod (720), two sliding grooves (723) are formed in the side wall of the top of the rotating rod (720), the top scraping piece (74) comprises a sliding sleeve (740) and four scraping rods (741), a sleeving groove (742) is formed in the bottom of the sliding sleeve (740), two clamping blocks (743) are mounted on the bottom of the side wall of the sleeving groove (742), the two clamping blocks (743) are slidably clamped in the two sliding grooves (723), one end of each of the four scraping rods (741) is fixedly connected with the top side wall of the sliding sleeve (740), a floating block (744) is mounted on the bottom of each scraping rod (741), four clamping grooves (530) are formed in the top of the inner processing shell (53), a clamping column (745) is mounted on the other end of each scraping rod (741), and the clamping column (745) is clamped in the clamping groove (530).

8. The biological feed fermenter off-gas treatment apparatus according to claim 7, characterized by: The air exhaust assembly (30) comprises a first air exhaust pipe (31), an air exhaust pump (32) and a second air exhaust pipe (33), one end of the first air exhaust pipe (31) is inserted into the top of the outer cover (55), one end of the air exhaust pump (32) is fixedly connected with the other end of the first air exhaust pipe (31), one end of the second air exhaust pipe (33) is fixedly connected with the other end of the air exhaust pump (32), the material supplement assembly (60) comprises a fixing rod (61), an automatic material supplement tank (62) and a material supplement pipe (63), one end of the fixing rod (61) is fixedly connected with the side wall of the outer processing shell (51), the automatic material supplement tank (62) is fixedly connected with the other end of the fixing rod (61), the upper end of the material supplement pipe (63) is inserted into the bottom of the automatic material supplement tank (62), and the lower end of the material supplement pipe (63) is sequentially arranged in the outer processing shell (51) and the inner processing shell (53).

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