Air filter for fermentation tank

Abstract

The utility model provides an air filter for a fermentation tank, the air filter comprises a lower tank body and an upper tank body, the lower tank body and the upper tank body are in threaded connection, an air inlet pipe is fixedly connected to one side surface of the lower tank body, an air outlet pipe is fixedly mounted on the upper surface of the upper tank body, and supporting legs are fixedly mounted on the lower surface of the lower tank body. A filtering mechanism is arranged in the lower tank body and the upper tank body, and a cleaning mechanism is arranged outside the filtering mechanism. Through use of the cleaning mechanism, when the filter screen needs to be cleaned, a motor is started to drive a reciprocating lead screw at the output end to rotate, the reciprocating lead screw can drive a sliding ring to slide up and down, and the sliding ring is in contact with the surface of an outer filter layer; according to the air filter, large-particle impurities in the air filtered by the filter screen can be conveniently swept off through the sliding ring, and the situation that the blocked filter screen cannot be cleaned in time, the air inlet amount of the air is affected, and use of the air filter is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the relevant field of fermentation tanks, and in particular to an air filter for a fermentation tank. Background Art

[0002] Fermentation tanks are equipment used to produce biogas by fermenting biomass. Fermentation tanks are usually sealed containers that are used to hold biomass raw materials such as organic waste, and provide a suitable temperature, humidity and microbial environment to promote the decomposition of organic matter in the waste by microorganisms to produce biogas. Since the fermentation process needs to be carried out under sterile and pollution-free conditions, it is necessary to ensure that the fermentation tank is in a sealed state during the fermentation process. For aerobic bacterial fermentation, a large amount of sterile air needs to be continuously introduced into the fermentation tank, so an air filter needs to be added to the fermentation tank.

[0003] The prior art with patent publication (announcement) number CN207987173U discloses a fermentation tank equipped with an air filter, including a tank body and an air filter connected to the tank body, the air filter includes an upper shell and a lower shell detachably connected to the upper shell, and an air intake pipe connected to the interior of the lower shell for secondary filtering of the air is fixedly connected to the cylindrical surface of the lower shell.

[0004] The above patent document discloses a fermentation tank equipped with an air filter. Although it can solve the problem that the air inlet of the existing air filter is located at the upper part of the filter and the air outlet is located at the lower part of the filter, when an air pump is used to ventilate the air, large particles of dust in the air can easily enter the air filter directly through the air inlet and accumulate in the air filter under the action of gravity, which can easily cause blockage of the air filter. However, the disadvantage is that after the filter is blocked, the blocked filter cannot be cleaned in time, which affects the air intake and affects the use of the air filter.

[0005] Therefore, we make improvements to this and propose an air filter for a fermentation tank. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides an air filter for a fermentation tank, which solves the problems mentioned in the background technology.

[0007] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0008] Fermentation tanks use air filters to solve the above problems.

[0009] The specific application is as follows:

[0010] It comprises a lower tank body and an upper tank body, wherein the lower tank body and the upper tank body are connected by a threaded connection, and an air inlet pipe is fixedly connected to one side surface of the lower tank body, an air outlet pipe is fixedly installed on the upper surface of the upper tank body, and a supporting leg is fixedly installed on the lower surface of the lower tank body, and a bottom pad is fixedly installed on the lower surface of the supporting leg, and a filtering mechanism is arranged inside the lower tank body and the upper tank body, and a cleaning mechanism is arranged outside the filtering mechanism;

[0011] The filtering mechanism comprises two fixing rings, and the two fixing rings are fixedly installed inside the lower tank body and the upper tank body respectively, a bracket is arranged between the two fixing rings, and an outer filter layer, a middle filter layer and an inner filter layer are fixedly installed inside the bracket.

[0012] As a preferred technical solution of the present application, the bracket includes a lower mounting ring and an upper mounting ring, and a support rod is fixedly connected between the lower mounting ring and the upper mounting ring.

[0013] As a preferred technical solution of the present application, sealing rings are fixedly installed on the upper and lower surfaces of the bracket, a sealing groove is opened on the surface of the fixing ring, and a sealing ring is fixedly installed inside the sealing groove, and the sealing ring and the sealing groove are connected by a snap-fit ​​connection.

[0014] As a preferred technical solution of the present application, the outer filter layer is a coarse filter mesh, the middle filter layer is a nano silver ion sterilization layer, and the inner filter layer is an activated carbon adsorption filter layer.

[0015] As a preferred technical solution of the present application, the cleaning mechanism includes a connecting ring, and the connecting ring is fixedly installed on the outside of the connecting ring inside the lower tank body, a reciprocating screw and a fixed rod are fixedly installed on the upper surface of the connecting ring, and a sliding ring is arranged on the upper side of the connecting ring, the sliding ring and the reciprocating screw are connected by a threaded connection, and the sliding ring and the fixed rod are slidably connected, and the sliding ring is in contact with the surface of the outer filter layer.

[0016] As a preferred technical solution of the present application, a motor is fixedly mounted on the bottom of the connecting ring, and the output end of the motor is fixedly connected to one end of the reciprocating screw.

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

[0018] In the scheme of this application:

[0019] Through the use of the cleaning mechanism, when the filter needs to be cleaned, the motor is started to drive the reciprocating screw at the output end to rotate, and the reciprocating screw can drive the sliding ring to slide up and down. Since the sliding ring is in contact with the surface of the outer filter layer, the larger particles of impurities in the air filtered out by the filter can be swept away by the sliding ring, avoiding the failure to clean the blocked filter in time, affecting the air intake and affecting the use of the air filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional structural schematic diagram of an air filter for a fermentation tank provided in this application;

[0021] Figure 2 A schematic diagram of the cross-sectional structure of the air filter for a fermentation tank provided in the present application;

[0022] Figure 3 A three-dimensional structural schematic diagram of a filtration mechanism of an air filter for a fermentation tank provided in the present application;

[0023] Figure 4 A schematic diagram of a three-dimensional structure of a filtration mechanism of an air filter for a fermentation tank provided in the present application;

[0024] Figure 5 A schematic structural diagram of a cross-section of a filtration mechanism of an air filter for a fermenter provided in the present application;

[0025] Figure 6 Air filter for fermenter provided for this application Figure 5 Schematic diagram of the enlarged structure of part A in the middle.

[0026] Indicated in the figure:

[0027] 1. Lower tank body; 2. Upper tank body; 3. Support legs; 4. Inlet pipe; 5. Outlet pipe; 6. Bottom pad; 7. Filter mechanism; 701. Fixed ring; 702. Bracket; 7021. Lower mounting ring; 7022. Upper mounting ring; 7023. Support rod; 703. Outer filter layer; 704. Middle filter layer; 705. Inner filter layer; 706. Sealing ring; 707. Sealing groove; 708. Sealing ring; 8. Cleaning mechanism; 801. Connecting ring; 802. Reciprocating screw; 803. Fixed rod; 804. Sliding ring; 805. Motor. DETAILED DESCRIPTION

[0028] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described examples are part of the embodiments of the utility model, not all of the embodiments.

[0029] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. 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.

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "upper" and "lower" is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In order to solve the technical problems in the background technology, the following air filter for a fermenter is provided:

[0034] Combination Figure 1 - Figure 6 As shown, the utility model provides an air filter for a fermentation tank, comprising a lower tank body 1 and an upper tank body 2, the lower tank body 1 and the upper tank body 2 are connected by a threaded connection, and an air inlet pipe 4 is fixedly connected to the surface of one side of the lower tank body 1, an air outlet pipe 5 is fixedly installed on the upper surface of the upper tank body 2, and a supporting leg 3 is fixedly installed on the lower surface of the lower tank body 1, and a bottom pad 6 is fixedly installed on the lower surface of the supporting leg 3, a filtering mechanism 7 is arranged inside the lower tank body 1 and the upper tank body 2, and a cleaning mechanism 8 is arranged outside the filtering mechanism 7, the filtering mechanism 7 comprises a fixing ring 701, and two fixing rings 701 are arranged, and the two fixing rings 701 are fixedly installed inside the lower tank body 1 and the upper tank body 2 respectively, a bracket 702 is arranged between the two fixing rings 701, and an outer filter layer 703, a middle filter layer 704 and an inner filter layer 705 are fixedly installed inside the bracket 702.

[0035] In this embodiment: air enters from the air inlet pipe 4, and can be filtered by the outer filter layer 703, the middle filter layer 704 and the inner filter layer 705 fixedly connected to the outside of the bracket 702. The filtered air will enter the bracket 702 and be discharged from the air outlet pipe 5 on the upper surface of the upper tank body 2; the fixing ring 701 inside the lower tank body 1 and the upper tank body 2 facilitates the installation of the bracket 702; the lower tank body 1 and the upper tank body 2 are connected by a threaded connection, which is convenient for disassembling the tank body and cleaning the inside of the tank body.

[0036] As a preferred embodiment, the bracket 702 includes a lower mounting ring 7021 and an upper mounting ring 7022 , and a support rod 7023 is fixedly connected between the lower mounting ring 7021 and the upper mounting ring 7022 .

[0037] In this embodiment, the bracket 702 can be composed of a lower mounting ring 7021 , an upper mounting ring 7022 and a support rod 7023 .

[0038] like Figure 1 - Figure 6 As shown, based on the above embodiment, in order to enable the air filter for the fermentation tank to improve the sealing between the bracket 702 and the fixing ring 701 and prevent the air from entering the tank body from between the bracket 702 and the fixing ring 701 without being filtered, this embodiment provides the following design:

[0039] As a preferred embodiment, sealing rings 706 are fixedly installed on the upper and lower surfaces of the bracket 702, a sealing groove 707 is opened on the surface of the fixing ring 701, and a sealing ring 708 is fixedly installed inside the sealing groove 707, and the connection between the sealing ring 706 and the sealing groove 707 is a snap-fit ​​connection.

[0040] In this embodiment: when installing the lower tank body 1 and the upper tank body 2, the sealing groove 707 opened on the surface of the fixing ring 701 can be engaged with the sealing ring 706 installed on the surface of the bracket 702, and the sealing ring 708 inside the sealing groove 707 can be squeezed to improve the sealing between the bracket 702 and the fixing ring 701.

[0041] like Figure 2 - Figure 6 As shown, based on the above embodiment, in order to enable the fermentation tank air filter to sterilize and filter the air, this embodiment provides the following design:

[0042] As a preferred embodiment, the outer filter layer 703 is a coarse filter mesh, the middle filter layer 704 is a nano silver ion sterilization layer, and the inner filter layer 705 is an activated carbon adsorption filter layer.

[0043] In this embodiment: the particulate impurities in the air can be filtered through the outer filter layer 703 to avoid clogging of the filter screen, the nano silver ion sterilization layer can effectively improve the sterilization performance of the filter screen, and the activated carbon adsorption filter layer can absorb odors and toxic gases in the air and filter out some dust.

[0044] like Figure 2 - Figure 5 As shown, based on the above embodiment, in order to enable the fermentation tank air filter to conveniently clean the filtered air impurities, this embodiment provides the following design:

[0045] As a preferred embodiment, the cleaning mechanism 8 includes a connecting ring 801, and the connecting ring 801 is fixedly installed on the outside of the connecting ring 801 inside the lower tank body 1, a reciprocating screw 802 and a fixed rod 803 are fixedly installed on the upper surface of the connecting ring 801, and a sliding ring 804 is arranged on the upper side of the connecting ring 801, the sliding ring 804 and the reciprocating screw 802 are connected in a threaded manner, and the sliding ring 804 is slidably connected to the fixed rod 803, and the sliding ring 804 is in contact with the surface of the outer filter layer 703.

[0046] In this embodiment: the sliding ring 804 is in contact with the surface of the outer filter layer 703, and can be rotated by the reciprocating screw 802 to drive the sliding ring 804 to reciprocate up and down, so as to clean the air impurities filtered out by the outer filter layer 703 and avoid clogging of the filter screen. The sliding ring 804 is slidably connected to the fixed rod 803, and the sliding ring 804 can be limited by the fixed rod 803 to avoid the sliding ring 804 from tilting and being damaged during the sliding process.

[0047] As a preferred embodiment, a motor 805 is fixedly mounted on the bottom of the connecting ring 801 , and an output end of the motor 805 is fixedly connected to one end of the reciprocating screw 802 .

[0048] In this embodiment, the reciprocating screw 802 at the output end can be driven to rotate by starting the motor 805, thereby driving the sliding ring 804 to reciprocate up and down to clean the particulate impurities filtered out from the surface of the coarse filter.

[0049] Specifically, the working principle of this solution is:

[0050] When in use, air enters from the air inlet pipe 4, and can be filtered through the outer filter layer 703, the middle filter layer 704 and the inner filter layer 705 fixedly connected to the outside of the bracket 702. The filtered air will enter the bracket 702 and be discharged from the air outlet pipe 5 on the upper surface of the upper tank body 2. The outer filter layer 703 can filter particulate impurities in the air to avoid clogging the filter screen. The nano silver ion sterilization layer can effectively improve the sterilization performance of the filter screen. The activated carbon adsorption filter layer can absorb odors and toxic gases in the air and filter out some dust.

[0051] When it is necessary to clean the air impurities filtered on the surface of the outer filter layer 703, the starting motor 805 drives the reciprocating screw 802 at the output end to rotate, and then drives the sliding ring 804 to reciprocate up and down to clean the particulate impurities filtered out from the surface of the coarse filter screen, so as to avoid the failure to clean the blocked filter screen in time, which affects the air intake and the use of the air filter. The above is the working process of the entire device, and the contents not described in detail in this manual belong to the existing technology known to professional and technical personnel in this field.

[0052] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention are included in the scope of the claims of the present invention.

Claims

1. An air filter for a fermentation tank, comprising a lower tank body (1) and an upper tank body (2), characterized in that: The lower tank body (1) and the upper tank body (2) are connected by threaded connection, and an air inlet pipe (4) is fixedly connected to one side surface of the lower tank body (1), an air outlet pipe (5) is fixedly installed on the upper surface of the upper tank body (2), and a support leg (3) is fixedly installed on the lower surface of the lower tank body (1), and a bottom pad (6) is fixedly installed on the lower surface of the support leg (3), and a filtering mechanism (7) is arranged inside the lower tank body (1) and the upper tank body (2), and a cleaning mechanism (8) is arranged outside the filtering mechanism (7); The filtering mechanism (7) comprises a fixing ring (701), wherein two fixing rings (701) are provided, and the two fixing rings (701) are respectively fixedly mounted inside the lower tank body (1) and the upper tank body (2), a bracket (702) is provided between the two fixing rings (701), and an outer filtering layer (703), a middle filtering layer (704) and an inner filtering layer (705) are fixedly mounted inside the bracket (702).

2. The air filter for a fermenter according to claim 1, characterized in that: The bracket (702) comprises a lower mounting ring (7021) and an upper mounting ring (7022), and a support rod (7023) is fixedly connected between the lower mounting ring (7021) and the upper mounting ring (7022).

3. The air filter for a fermentation tank according to claim 1, characterized in that: Sealing rings (706) are fixedly mounted on the upper and lower surfaces of the bracket (702), a sealing groove (707) is provided on the surface of the fixing ring (701), and a sealing ring (708) is fixedly mounted inside the sealing groove (707), and the sealing ring (706) and the sealing groove (707) are connected by a snap-fit ​​connection.

4. The air filter for a fermentation tank according to claim 1, characterized in that: The outer filter layer (703) is a coarse filter mesh, the middle filter layer (704) is a nano silver ion sterilization layer, and the inner filter layer (705) is an activated carbon adsorption filter layer.

5. The air filter for a fermentation tank according to claim 1, characterized in that: The cleaning mechanism (8) comprises a connecting ring (801), and the connecting ring (801) is fixedly mounted on the outside of the connecting ring (801) inside the lower tank body (1); a reciprocating screw (802) and a fixed rod (803) are fixedly mounted on the upper surface of the connecting ring (801); a sliding ring (804) is provided on the upper side of the connecting ring (801); the sliding ring (804) and the reciprocating screw (802) are connected in a threaded manner, and the sliding ring (804) and the fixed rod (803) are slidably connected; the sliding ring (804) is in contact with the surface of the outer filter layer (703).

6. The air filter for a fermentation tank according to claim 5, characterized in that: A motor (805) is fixedly mounted on the bottom of the connecting ring (801), and an output end of the motor (805) is fixedly connected to one end of the reciprocating screw (802).

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