Device and method for purifying kitchen waste gas

Abstract

The invention relates to a purification device and method for kitchen waste gas, and the device comprises a reaction box which is provided with a gas inlet pipe, a first exhaust pipe and a limiting groove; the spraying assembly comprises a suction pump, an absorbent box, a spraying pipe and a spraying nozzle, the absorbent box is connected to the input end of the suction pump, the output end of the suction pump is fixed to the spraying pipe, the spraying pipe is fixed to the bottom of the filter, the spraying nozzle is fixed to the spraying pipe, and the spraying nozzle is located in the reaction box; the filter is fixed in the reaction box; the adsorption assembly is used for adsorbing pollutants in the waste gas. Waste gas generated in the stacking and fermentation process of kitchen waste enters the reaction box from the gas inlet pipe, the suction pump is started to spray an alkaline substance solution in the absorbent box to be mixed with the waste gas, hydrogen sulfide gas in the waste gas is removed, and pollutants in the waste gas are adsorbed by the adsorption assembly after the waste gas is filtered by the filter; and finally, clean gas is exhausted, so that the environment is protected, and the damage to workers is reduced.

Description

Technical Field

[0001] The present invention relates to the field of kitchen waste gas treatment, and in particular to a purification device and method for kitchen waste gas. Background Art

[0002] At present, the main methods for treating kitchen waste include crushing and direct discharge, landfill, fertilizer treatment, feed treatment, energy treatment and on-site treatment equipment for kitchen waste, etc. However, in the process of implementing these treatment plans, the stacking and fermentation of kitchen waste will produce certain odors, causing pollution to the workshop or environment, among which H2S (hydrogen sulfide) is one of the main substances that produce odor. These odorous gases and dust will cause varying degrees of toxicity to the human respiratory, digestive, cardiovascular, endocrine and nervous systems. Therefore, there is an urgent need for a device specifically for purifying the gas generated during the fermentation of kitchen waste to improve the entire kitchen waste treatment process. Summary of the invention

[0003] Based on this, it is necessary to provide a purification device and method for kitchen waste gas, as the stacking and fermentation of kitchen waste easily produces foul-smelling gases and dust, which can cause varying degrees of toxicity to the human respiratory, digestive, cardiovascular, endocrine and nervous systems.

[0004] The present invention provides a purification device for kitchen waste gas, comprising:

[0005] A reaction box, comprising an air inlet pipe, a first exhaust pipe, a liquid discharge pipe and a limiting groove, wherein the air inlet pipe and the liquid discharge pipe are both located on the outer wall of the reaction box, the first exhaust pipe is located on the top of the reaction box, and the limiting groove is located between the air inlet pipe and the first exhaust pipe;

[0006] A spray assembly, comprising a suction pump, an absorbent box, a spray pipe and a spray nozzle, wherein the absorbent box is connected to the input end of the suction pump, the output end of the suction pump is fixed to the spray pipe, the spray pipe is fixed to the bottom of the filter, the spray nozzle is fixed to the spray pipe, and the spray nozzle is located in the reaction box;

[0007] A filter is fixed in the reaction box;

[0008] The adsorption component is located in the limiting groove and is used to adsorb pollutants in the exhaust gas.

[0009] In one embodiment, a reaction chamber is formed between the filter and the reaction box, and an adsorption chamber is formed between the filter and the adsorption assembly.

[0010] In one embodiment, an isolation chamber is provided in the filter, and a first baffle plate and a second baffle plate are fixed in the isolation chamber. The first baffle plates and the second baffle plates are arranged alternately, and a gap for gas circulation is formed between the first baffle plates and the second baffle plates.

[0011] In one embodiment, the adsorption assembly includes a first support member, a second support member, activated carbon and a deodorizing membrane. The first support member is provided with a first groove and a slot, the activated carbon is located in the first groove, the second support member is located in the slot, the second support member is provided with a second groove, the deodorizing membrane is installed in the second groove, and the first support member and the second support member are both provided with a first through hole.

[0012] In one embodiment, the reaction box, the first support member and the second support member are all provided with threaded holes, threaded rods are arranged in the threaded holes, and the second support member is provided with a third groove, and the threaded rod is located in the third groove.

[0013] In one embodiment, the end of the threaded rod has a boss, and columns are symmetrically arranged on the boss, and a fourth groove is formed between adjacent columns.

[0014] In one embodiment, the angle between the column and the boss is 45 degrees to 90 degrees.

[0015] In one embodiment, an elastic member is fixed in the first groove, a third support member is fixed to the free end of the elastic member, a second through hole and a third through hole are provided on the third support member, the second through hole and the third through hole are both inclined holes, and the second through hole is mirror-symmetrical to the third through hole, and the activated carbon is located between the third support member and the second support member.

[0016] In one embodiment, the outlet end of the first exhaust pipe is fixedly connected to a disinfection box, a hypochlorous acid generator is installed on the disinfection box, and a second exhaust pipe is fixedly connected to a side wall of the disinfection box.

[0017] The present invention also provides a method for purifying kitchen waste gas, and the purification device for kitchen waste gas mentioned above comprises:

[0018] Spraying the absorbent solution on the kitchen waste gas, and making the absorbent solution and the kitchen waste gas react chemically to remove the hydrogen sulfide gas in the kitchen waste gas;

[0019] Carry out primary filtration of kitchen waste gas;

[0020] Adsorb and deodorize the filtered kitchen waste gas;

[0021] The kitchen waste gas is disinfected and sterilized before being discharged.

[0022] The above-mentioned device and method for purifying kitchen waste gas allow the waste gas generated by the stacking and fermentation of kitchen garbage to enter the reaction box through the air inlet pipe, start the suction pump to spray the alkaline substance solution in the absorbent box to mix with the waste gas to form a sulfide solution, which is deposited at the bottom of the reaction box and finally discharged through the drain pipe, thereby removing hydrogen sulfide gas in the waste gas. After the primary filtration of the filter, the adsorption component adsorbs the pollutants in the waste gas, and finally discharges clean gas, which is beneficial to protecting the environment and reducing damage to the staff.

[0023] When assembling the first support member and the second support member, on the one hand, the second support member can be fixed in the slot by holding the column and rotating the threaded rod, without the need for other tools. The operation is simple and easy to use. At the same time, the angle between the column and the boss conforms to the direction of force applied by the staff during installation, making the installation more labor-saving. On the other hand, after the assembly is completed, the column can limit the displacement of the deodorizing membrane under the impact of the airflow, thereby improving the stability of the deodorizing membrane.

[0024] When the airflow enters the area between the activated carbon and the second support member from the second through hole and the third through hole, since the second through hole and the third through hole are both inclined holes, and the second through hole is mirror-symmetrical to the third through hole, the forces on both sides of the third support member are uneven, so that under the action of the elastic member, the third support member is shaken, and at the same time, the airflow flowing in the relative directions causes the activated carbon to roll, thereby increasing the contact area between the airflow and the activated carbon, thereby improving the adsorption efficiency of pollutants in the kitchen waste gas, and further improving the purification efficiency of the kitchen waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 is a schematic structural diagram of a purification device for kitchen waste gas in one embodiment;

[0027] Figure 2 It is a partial structural schematic diagram of a purification device for kitchen waste gas in one embodiment;

[0028] Figure 3 is a schematic diagram of the structure of a spray assembly in an embodiment;

[0029] Figure 4 A schematic diagram of the reaction box structure in one embodiment;

[0030] Figure 5is a schematic diagram of the structure of an adsorption component in an embodiment;

[0031] Figure 6 A schematic diagram of a filter structure in an embodiment

[0032] Figure 7 is a schematic diagram of the threaded rod structure in one embodiment;

[0033] Figure 8 is a schematic structural diagram of a third support member in an embodiment;

[0034] Fig. 9 The figure is a schematic diagram of a purification process for kitchen waste gas in one embodiment.

[0035] Reference numerals:

[0036] 100, reaction box; 110, air inlet pipe; 120, first exhaust pipe; 130, reaction chamber; 140, adsorption chamber; 150, limit groove; 160, drain pipe; 200, spray assembly; 210, suction pump; 220, absorbent box; 230, spray pipe; 240, spray nozzle; 300, filter; 310, isolation chamber; 320, first baffle plate; 330, second baffle plate; 340, gap; 400, adsorption assembly; 410, first support member; 411, first A groove; 412, a slot; 413, a first through hole; 420, a second support member; 421, a second groove; 422, a third groove; 430, activated carbon; 440, a deodorizing membrane; 450, a threaded rod; 451, a boss; 452, a column; 453, a fourth groove; 460, a threaded hole; 470, an elastic member; 480, a third support member; 481, a second through hole; 482, a third through hole; 500, a disinfection box; 510, a hypochlorous acid generator; 520, a second exhaust pipe. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present invention are for illustrative purposes only and do not represent the only implementation method.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] Unless otherwise defined, all technical and scientific terms used in the specification of the present invention have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in the specification of the present invention includes any and all combinations of one or more related listed items.

[0042] Combine the following Figure 1-Figure 8 The invention describes a device and method for purifying kitchen waste gas.

[0043] like Figure 1 , Figure 2 As shown, in one embodiment, a purification device for kitchen waste gas includes a reaction box 100, a spray assembly 200, a filter 300 and an adsorption assembly 400.

[0044] The reaction box 100 has an air inlet pipe 110, a first exhaust pipe 120, a limiting groove 150 and a drain pipe 160. The air inlet pipe 110 and the drain pipe 160 are both located on the outer wall of the reaction box 100, the first exhaust pipe 120 is located at the top of the reaction box 100, and the limiting groove 150 is located between the air inlet pipe 110 and the first exhaust pipe 120.

[0045] The filter 300 is fixed in the reaction box 100, and the filter 300 is located between the limiting groove 150 and the air inlet pipe 110, see Figure 4 Filter 300 is a primary filter that filters the dust carried in the kitchen exhaust gas.

[0046] For details, see Figure 3 The spray assembly 200 includes a suction pump 210, an absorbent box 220, a spray pipe 230 and a spray nozzle 240. The absorbent box 220 is connected to the input end of the suction pump 210, and the output end of the suction pump 210 is fixed to the spray pipe 230. The spray pipe 230 is vortex-shaped, so that the exhaust gas and the alkaline substance solution are mixed more evenly, thereby improving the removal efficiency of hydrogen sulfide gas in the kitchen exhaust gas. The spray pipe 230 is fixed to the bottom of the filter 300, and the spray nozzle 240 is fixed on the spray pipe 230. The spray nozzle 240 is located in the reaction box 100. Sodium hydroxide or calcium hydroxide is contained in the absorbent box 220. The alkaline substance reacts with hydrogen sulfide to form sulfide, thereby facilitating the removal of hydrogen sulfide gas.

[0047] The adsorption assembly 400 is located in the limiting groove 150 , and the adsorption assembly 400 is used to adsorb pollutants in the exhaust gas.

[0048] For details, see Figure 5 The adsorption component 400 includes a first support member 410, a second support member 420, activated carbon 430 and a deodorizing membrane 440. The first support member 410 is provided with a first groove 411 and a slot 412. The activated carbon 430 is located in the first groove 411. The second support member 420 is located in the slot 412. The second support member 420 is provided with a second groove 421. The deodorizing membrane 440 is installed in the second groove 421. The first support member 410 and the second support member 420 are both provided with a first through hole 413.

[0049] The kitchen waste gas purification device of this embodiment, when in use, allows waste gas generated by stacking and fermentation of kitchen waste to enter the reaction box 100 through the air inlet pipe 110, starts the suction pump 210 to spray the alkaline substance solution in the absorbent box 220 to mix with the waste gas to form a sulfide solution, which is deposited at the bottom of the reaction box 100 and finally discharged through the drain pipe 160, thereby removing hydrogen sulfide gas in the waste gas. After the primary filtration of the filter 300, the adsorption component 400 adsorbs the pollutants in the waste gas, and finally discharges clean gas, which is beneficial to protecting the environment and reducing damage to the staff.

[0050] It should be supplemented that a reaction chamber 130 is formed between the filter 300 and the reaction box 100 , and an adsorption chamber 140 is formed between the filter 300 and the adsorption assembly 400 .

[0051] In this embodiment, due to the high humidity caused by spraying absorbent in the reaction chamber 130, the mist-like absorbent will enter the adsorption chamber 140, and thus will be easily absorbed by the adsorption assembly 400, resulting in waste. Figure 6 An isolation chamber 310 is provided in the filter 300, and a first baffle plate 320 and a second baffle plate 330 are fixed in the isolation chamber 310. The cross-section of the first baffle plate 320 or the second baffle plate 330 can be a semicircular ring, a quadrilateral, a triangle, etc. The first baffle plates 320 and the second baffle plates 330 are arranged alternately, and a gap 340 for gas circulation is formed between the first baffle plates 320 and the second baffle plates 330.

[0052] When the airflow carrying the adsorbent in mist form enters the isolation chamber 310, the water vapor condenses into water droplets and drips into the reaction chamber 130 under the blocking effect of the first baffle plate 320 and the second baffle plate 330, while the drier airflow enters the adsorption chamber 140 from the gap 340, thereby avoiding waste and improving the purification effect of kitchen waste gas.

[0053] In this embodiment, a threaded hole 460 is provided on the reaction box 100, the first support member 410 and the second support member 420, a threaded rod 450 is arranged in the threaded hole 460, a third groove 422 is provided on the second support member 420, and the threaded rod 450 is located in the third groove 422, so as to facilitate the regular removal of the first support member 410 and the maintenance of the activated carbon 430 and the deodorization membrane 440.

[0054] The gas filtered by the filter 300 enters the adsorption chamber 140, is first adsorbed by the activated carbon 430, and then deodorized by the deodorizing membrane 440, which can more effectively remove the toxic gas in the exhaust gas, so that the exhaust gas flow meets the emission standards and protects the environment.

[0055] like Figure 7 As shown, in one embodiment, the end of the threaded rod 450 has a boss 451 , and columns 452 are symmetrically arranged on the boss 451 , and a fourth groove 453 is formed between adjacent columns 452 .

[0056] It should be noted that the angle between the column 452 and the boss 451 is 45 to 90 degrees, which makes it convenient for the staff to screw the threaded rod 450 into the corresponding threaded hole 460 when assembling the reaction box 100, the first support member 410 and the second support member 420.

[0057] When assembling the first support member 410 and the second support member 420, on the one hand, the second support member 420 can be fixed in the slot 412 by holding the column 452 and rotating the threaded rod 450 without using other tools. The operation is simple and easy to use. At the same time, the angle between the column 452 and the boss 451 conforms to the direction of force applied by the staff during installation, making the installation more labor-saving. On the other hand, after the assembly is completed, the column 452 can limit the displacement of the deodorizing membrane 440 under the impact of the airflow, thereby improving the stability of the deodorizing membrane 440.

[0058] like Figure 8 As shown, in one embodiment, an elastic member 470 is fixed in the first groove 411, and the elastic member 470 is a spring. The elastic member 470 facilitates the connection between the third support member 480 and the first support member 410, and can support the activated carbon 430. At the same time, under the action of kitchen waste gas, the elongation and compression of the elastic member 470 can cause the activated carbon 430 particles to shake between the third support member 480 and the second support member 420. The free end of the elastic member 470 is fixed with the third support member 480, and the third support member 480 is provided with a second through hole 481 and a third through hole 482. The second through hole and the third through hole 482 are both oblique holes, and the second through hole 481 and the third through hole 482 are mirror-symmetrical. The activated carbon 430 is located between the third support member 480 and the second support member 410.

[0059] When the airflow enters the area between the activated carbon 430 and the second support member 420 from the second through hole 481 and the third through hole 482, since the second through hole 481 and the third through hole 482 are both inclined holes, and the second through hole 481 and the third through hole 482 are mirror-symmetrical, the forces on both sides of the third support member 480 are uneven, so that under the action of the elastic member 470, the third support member 480 is shaken, and at the same time, the airflow flowing in the opposite direction causes the activated carbon 430 to roll, thereby increasing the contact area between the airflow and the activated carbon 430, thereby improving the adsorption efficiency of pollutants in the kitchen waste gas, and further improving the purification efficiency of the kitchen waste gas.

[0060] In this embodiment, the outlet end of the first exhaust pipe 120 is fixedly connected to a disinfection box 500 , a hypochlorous acid generator 510 is installed on the disinfection box 500 , and a second exhaust pipe 520 is fixedly connected to the side wall of the disinfection box 500 .

[0061] When in use, the waste gas generated by the restaurant kitchen waste enters the reaction chamber 130 from the air inlet pipe 110, and an alkaline substance solution is sprayed into the reaction chamber 130 to cause a chemical reaction between the waste gas and the alkaline substance solution to remove toxic hydrogen sulfide gas in the waste gas. The waste gas is then filtered by the filter 300 and discharged into the adsorption chamber 140. Finally, the waste gas is adsorbed by the activated carbon 430 and deodorized by the deodorizing membrane 440. The waste gas enters the disinfection box 500 from the first exhaust pipe 120, and the hypochlorous acid generator 510 is started to disinfect and sterilize the airflow before being discharged from the second exhaust pipe 520. The operation is simple, the use is convenient, and the waste gas generated by the restaurant kitchen waste can be effectively treated to protect the environment.

[0062] In addition, the present invention also provides a method for purifying kitchen waste gas, which is applied to the above-mentioned device for purifying kitchen waste gas.

[0063] like Fig. 9 As shown, in one embodiment, a method for purifying kitchen waste gas comprises the following steps:

[0064] Step S910: spraying the absorbent solution on the kitchen waste gas, and allowing the absorbent solution to react chemically with the kitchen waste gas to remove hydrogen sulfide gas in the kitchen waste gas.

[0065] Step S920, performing primary filtration on the kitchen waste gas.

[0066] Step S930, adsorbing and deodorizing the filtered kitchen waste gas.

[0067] Step S940, disinfecting and sterilizing the kitchen waste gas before discharging it.

[0068] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0069] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A purification device for kitchen waste gas, characterized in that: include: A reaction box, comprising an air inlet pipe, a first exhaust pipe, a liquid discharge pipe and a limiting groove, wherein the air inlet pipe and the liquid discharge pipe are both located on the outer wall of the reaction box, the first exhaust pipe is located on the top of the reaction box, and the limiting groove is located between the air inlet pipe and the first exhaust pipe; A spray assembly, comprising a suction pump, an absorbent box, a spray pipe and a spray nozzle, wherein the absorbent box is connected to the input end of the suction pump, the output end of the suction pump is fixed to the spray pipe, the spray pipe is fixed to the bottom of the filter, the spray nozzle is fixed to the spray pipe, and the spray nozzle is located in the reaction box; A filter, fixed in the reaction box; The adsorption component is located in the limiting groove and is used to adsorb pollutants in the exhaust gas.

2. The device for purifying kitchen waste gas according to claim 1, characterized in that: A reaction chamber is formed between the filter and the reaction box, and an adsorption chamber is formed between the filter and the adsorption component.

3. The purification device for kitchen waste gas according to claim 1, characterized in that: An isolation chamber is provided in the filter, and a first baffle plate and a second baffle plate are fixed in the isolation chamber. The first baffle plates and the second baffle plates are arranged alternately, and a gap for gas circulation is formed between the first baffle plates and the second baffle plates.

4. The device for purifying kitchen waste gas according to claim 1, characterized in that: The adsorption assembly includes a first support member, a second support member, activated carbon and a deodorizing membrane. The first support member is provided with a first groove and a slot, the activated carbon is located in the first groove, the second support member is located in the slot, the second support member is provided with a second groove, the deodorizing membrane is installed in the second groove, and the first support member and the second support member are both provided with a first through hole.

5. The device for purifying kitchen waste gas according to claim 4, characterized in that: The reaction box, the first support member and the second support member are all provided with threaded holes, a threaded rod is arranged in the threaded hole, the second support member is provided with a third groove, and the threaded rod is located in the third groove.

6. The device for purifying kitchen waste gas according to claim 5, characterized in that: The end of the threaded rod has a boss, and columns are symmetrically arranged on the boss, and a fourth groove is formed between adjacent columns.

7. The device for purifying kitchen waste gas according to claim 6, characterized in that: The included angle between the column and the boss is 45 degrees to 90 degrees.

8. The device for purifying kitchen waste gas according to claim 4, characterized in that: An elastic member is fixed in the first groove, a third support member is fixed to the free end of the elastic member, a second through hole and a third through hole are provided on the third support member, the second through hole and the third through hole are both inclined holes, and the second through hole is mirror-symmetrical to the third through hole, and the activated carbon is located between the third support member and the second support member.

9. The device for purifying kitchen waste gas according to any one of claims 1 to 8, characterized in that: The outlet end of the first exhaust pipe is fixedly connected to a disinfection box, a hypochlorous acid generator is installed on the disinfection box, and the side wall of the disinfection box is fixedly connected to a second exhaust pipe.

10. A method for purifying kitchen waste gas, characterized in that: The method is applied to the purification device for kitchen waste gas according to any one of claims 1 to 9, comprising: Spraying the absorbent solution on the kitchen waste gas, and making the absorbent solution and the kitchen waste gas react chemically to remove the hydrogen sulfide gas in the kitchen waste gas; Carry out primary filtration of kitchen waste gas; Adsorb and deodorize the filtered kitchen waste gas; The kitchen waste gas is disinfected and sterilized before being discharged.

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