Kitchen waste nitrogen and phosphorus removal device based on anaerobic fermentation technology

Abstract

The utility model discloses a kitchen waste nitrogen and phosphorus removal device based on an anaerobic fermentation technology, which comprises a reactor, an aeration mechanism for performing aeration operation on kitchen waste biogas slurry is arranged on the reactor, and an adjusting mechanism for expanding the aeration range of the aeration mechanism is further arranged on the reactor; the aeration mechanism comprises an aeration disc arranged in the inner cavity of the reactor, and a ventilation piece is arranged between the aeration disc and an external oxygen pump; by starting the motor, the output shaft of the motor finally drives the aeration disc to move up and down in a reciprocating manner, so that the aeration range of the aeration disc can be enlarged, and the disturbance effect on the kitchen waste biogas slurry can be achieved, so that the dispersion effect of tiny bubbles in the kitchen waste biogas slurry is improved, and the tiny bubbles can be fully mixed with the kitchen waste biogas slurry; therefore, the aeration effect is improved, and the treatment efficiency and quality of the kitchen waste biogas slurry are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen garbage treatment technical field especially relates to a kitchen garbage denitrification and phosphorus removal device based on anaerobic fermentation technology. BACKGROUND

[0002] Anaerobic fermentation is also called anaerobic digestion or biogas fermentation, which is a process that organic matter (such as human and livestock manure, straw, weeds, kitchen garbage, etc.) is decomposed and metabolized by various microorganisms under certain moisture, temperature and anaerobic conditions, and finally forms combustible mixed gas such as methane and carbon dioxide. The biogas fermentation system is based on the principle of biogas fermentation and aims at energy production, and finally realizes the comprehensive utilization of biogas, biogas slurry and biogas residue.

[0003] The patent document with the publication number CN219031933U discloses a kitchen garbage biogas slurry denitrification and phosphorus removal device, which uses blow-off method and crystallization precipitation method for sewage treatment, does not need to set a stirrer, and can save the amount of reagent, improve the removal effect of nitrogen and phosphorus pollutants by stirring and mixing the biogas slurry through the aeration disc. The structures such as baffle and deflector are added to prolong the moving path of the biogas slurry, facilitate secondary reaction, effectively improve the utilization rate of the reagent, and reduce the reagent input cost. The multi-stage sedimentation scheme is adopted, and the overflow port is used to monitor the blockage inside the reactor, which can effectively avoid equipment failure caused by scaling and blockage, prolong the service life of the equipment and pipeline, and reduce the equipment maintenance cost.

[0004] Although the above-mentioned kitchen garbage biogas slurry denitrification and phosphorus removal device can solve the corresponding technical problems, the position of the aeration disc is fixed, so it can only aerate a certain area of the sludge sedimentation zone, the aeration effect of the kitchen garbage biogas slurry at a position far from the aeration disc is poor, and the required aeration time of the kitchen garbage biogas slurry is longer, thereby affecting the treatment efficiency and quality of the kitchen garbage biogas slurry.

[0005] Therefore, a kitchen garbage denitrification and phosphorus removal device based on anaerobic fermentation technology is provided. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a kitchen garbage denitrification and phosphorus removal device based on anaerobic fermentation technology, which is used to solve the problems proposed in the above background technology.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the main technical scheme including:

[0008] A kitchen garbage denitrification and phosphorus removal device based on anaerobic fermentation technology, comprising:

[0009] A reactor is provided with an aeration mechanism for oxygenation of kitchen garbage biogas slurry, and the reactor is also provided with an adjusting mechanism for expanding the aeration range of the aeration mechanism.

[0010] The aeration mechanism comprises an aeration disc arranged in the inner cavity of the reactor, and a breather is arranged between the aeration disc and an external oxygen pump.

[0011] The adjusting mechanism comprises a motor frame arranged at the top of the reactor, a motor is arranged in the inner cavity of the motor frame, and a lifting member is arranged between the output shaft of the motor and the aeration disc.

[0012] As a preferred technical scheme, the reactor comprises an outer cylinder and an inner cylinder, the inner cylinder is fixedly connected to the inner cavity of the outer cylinder, the top of the outer cylinder is detachably connected with a cylinder cover through cooperation of a bolt and a nut, the aeration disc is located below the inner cylinder, and the motor frame is fixedly connected to the top of the cylinder cover.

[0013] As a preferred technical scheme, the breather comprises a conduit arranged through the lower part of the surface of the outer cylinder, one end of the conduit is communicated with a hose, the end of the hose away from the conduit is communicated with a connecting pipe, and a branch pipe is communicated between the connecting pipe and the aeration disc.

[0014] As a preferred technical scheme, the lifting member comprises a reciprocating screw rod arranged at the output end of the motor, the bottom end of the reciprocating screw rod penetrates to the lower part of the cylinder cover and extends to the inner cavity of the inner cylinder, an activity sleeve is arranged on the surface of the reciprocating screw rod, and a linkage member is arranged between the activity sleeve and the connecting pipe.

[0015] As a preferred technical scheme, the linkage member comprises a sleeve fixedly connected to the bottom of the activity sleeve, a bracket is fixedly connected to the bottom end of the sleeve, a bracket is fixedly connected to the bottom of the inner cavity of the bracket, and the bracket is fixedly sleeved on the surface of the connecting pipe.

[0016] As a preferred technical scheme, the inner wall surface of the sleeve is slidingly connected with the surface of the reciprocating screw rod, and a through hole is arranged in the top of the bracket for the reciprocating screw rod to pass through.

[0017] As a preferred technical scheme, the bracket is in a rectangular frame structure, and the feeding pipe and the dosing pipe between the outer cylinder and the inner cylinder penetrate to one side of the bracket, respectively.

[0018] The utility model at least has the following beneficial effects:

[0019] According to the application, the output shaft of the motor drives the aeration disc to move up and down reciprocatingly, the aeration range of the aeration disc is improved, the kitchen waste slurry is disturbed, the dispersion effect of the micro bubbles in the kitchen waste slurry is improved, the micro bubbles can be fully mixed with the kitchen waste slurry, the aeration effect is improved, and the treatment efficiency and quality of the kitchen waste slurry are improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is the structure schematic view of the kitchen garbage denitrification and dephosphorization device based on the anaerobic fermentation technology of the utility model;

[0021] Fig. 2 It is the structure section schematic view of the kitchen garbage denitrification and dephosphorization device based on the anaerobic fermentation technology of the utility model;

[0022] Fig. 3 It is the structure schematic view of the aeration mechanism, the lifting piece and the linkage piece of the kitchen garbage denitrification and dephosphorization device based on the anaerobic fermentation technology of the utility model.

[0023] In the drawing: 100, reactor;110, outer cylinder;120, inner cylinder;130, cylinder cover;200, aeration mechanism;210, aeration disc;220, air passage piece;221, guide pipe;222, hose;223, connecting pipe;224, branch pipe;300, adjusting mechanism;310, motor bracket;320, motor;330, reciprocating screw;340, movable sleeve;350, sleeve;360, support;370, seat. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figs. 1-3 The embodiment of the utility model provides a kind of kitchen garbage denitrification and dephosphorization device based on anaerobic fermentation technology, including reactor 100, for the oxygenation operation of kitchen garbage marsh liquid, aeration mechanism 200 and adjusting mechanism 300 for expanding the aeration range of aeration mechanism 200, aeration mechanism 200 and adjusting mechanism 300 are located on reactor 100;Aeration mechanism 200 includes the aeration disc 210 in the inner cavity of reactor 100, and air passage piece 220 is arranged between aeration disc 210 and external oxygen pump;Adjusting mechanism 300 includes the motor bracket 310 arranged at the top of reactor 100, and the inner cavity of motor bracket 310 is installed with motor 320, and lifting piece is arranged between the output shaft of motor 320 and aeration disc 210.

[0026] The reactor 100 comprises an outer cylinder 110 and an inner cylinder 120, the inner cylinder 120 is fixedly connected to the inner cavity of the outer cylinder 110, the top of the outer cylinder 110 is detachably connected with the cylinder cover 130 through the cooperation of the bolt and the nut, the outer cylinder 110, the inner cylinder 120, the cylinder cover 130 and the aerator plate 210 are arranged on the same axis, the aerator plate 210 is located below the inner cylinder 120, and the motor frame 310 is fixedly connected to the top of the cylinder cover 130.

[0027] It should be noted that the working principle of the above-mentioned reactor 100 is consistent with the reactor in the kitchen waste slurry denitrification and phosphorus removal device disclosed in the existing patent No. CN219031933U, which is prior art, and therefore will not be described in detail in this technical solution.

[0028] The air passage 220 comprises a conduit 221 penetratingly arranged on the lower part of the surface of the outer cylinder 110, one end of the conduit 221 is communicated with a hose 222, the end of the hose 222 away from the conduit 221 is communicated with a connecting pipe 223, the connecting pipe 223 is communicated with a branch pipe 224 between the aerator plate 210, and the air passage 220 can not only transport gas, but also support the aerator plate 210 in cooperation with the lifting member.

[0029] The lifting member comprises a reciprocating screw rod 330 installed on the output end of the motor 320, the bottom end of the reciprocating screw rod 330 penetrates to the lower part of the cylinder cover 130 and extends to the inner cavity of the inner cylinder 120, the surface of the reciprocating screw rod 330 is sleeved with a movable sleeve 340, the movable sleeve 340 and the connecting pipe 223 are provided with a linkage member, when the motor 320 is started, the output shaft of the motor 320 can finally drive the movable sleeve 340 to move up and down reciprocally, and the movable sleeve 340 can drive the aerator plate 210 to move up and down reciprocally synchronously through the linkage member, so as to expand the aeration range of the aerator plate 210.

[0030] The linkage member comprises a sleeve pipe 350 fixedly connected to the bottom of the movable sleeve 340, the bottom end of the sleeve pipe 350 is fixedly connected with a support 360, the bottom of the inner cavity of the support 360 is fixedly connected with a bracket 370, the bracket 370 is fixedly sleeved on the surface of the connecting pipe 223, and the linkage member can realize the linkage connection between the movable sleeve 340 and the aerator plate 210.

[0031] The inner wall surface of the sleeve pipe 350 is slidably connected with the surface of the reciprocating screw rod 330, and the top of the support 360 is provided with a penetrating hole for the reciprocating screw rod 330 to pass through, when the movable sleeve 340 drives the sleeve pipe 350 to move up and down, the sleeve pipe 350 can slide on the surface of the reciprocating screw rod 330 to realize the guiding effect, so that the motor frame 310 can move stably.

[0032] The support 360 is in a rectangular frame structure, the feeding pipe and the dispensing pipe between the outer cylinder 110 and the inner cylinder 120 are respectively penetrated to one side of the support 360, by adopting the frame design of the support 360, the connection operation of the sleeve 350 and the support 370 can be ensured, and the feeding pipe and the dispensing pipe are avoided from being blocked.

[0033] The working principle of the utility model is: through connecting the catheter 221 with external oxygen pump, starting external oxygen pump, gas is transported into the aeration disc 210 through the catheter 221, hose 222, connecting pipe 223 and branch pipe 224 in turn, the aeration disc 210 blows out tiny bubbles to agitate kitchen waste sludge; starting motor 320, the output shaft of motor 320 drives reciprocating screw rod 330 to rotate, reciprocating screw rod 330 drives the up-and-down reciprocating movement of movable sleeve 340 on its surface, movable sleeve 340 drives sleeve 350, support 360, support seat 370, connecting pipe 223, branch pipe 224 and aeration disc 210 to move synchronously, so that the aeration disc 210 can carry out up-and-down reciprocating aeration in sludge, so that the dispersion of oxygen into the outer cylinder 110 is more uniform, and the aeration effect is improved.

[0034] The parts not involved in the utility model are the same as the prior art or can be realized by using the prior art. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for removing nitrogen and phosphorus from kitchen waste based on anaerobic fermentation technology, characterized in that, The utility model relates to a kitchen waste treatment device, including: The reactor (100) is provided with aeration mechanism (200) for the oxygenation operation of kitchen waste sludge, and the reactor (100) is also provided with adjusting mechanism (300) for expanding the aeration range of aeration mechanism (200); Wherein, the aeration mechanism (200) includes aeration disc (210) arranged in the inner cavity of the reactor (100), and the aeration disc (210) is provided with aeration piece (220) between the outer oxygen pump; The adjusting mechanism (300) includes motor frame (310) arranged at the top of the reactor (100), the inner cavity of the motor frame (310) is installed with motor (320), and the output shaft of the motor (320) is provided with lifting piece between the aeration disc (210).

2. The device for removing nitrogen and phosphorus from kitchen waste based on anaerobic fermentation technology according to claim 1, characterized in that: The reactor (100) includes outer cylinder (110) and inner cylinder (120), the inner cylinder (120) is fixedly connected to the inner cavity of the outer cylinder (110), the top of the outer cylinder (110) is detachably connected with cylinder cover (130) through bolt and nut cooperation, the aeration disc (210) is located below the inner cylinder (120), and the motor frame (310) is fixedly connected to the top of the cylinder cover (130).

3. The device for removing nitrogen and phosphorus from kitchen waste based on anaerobic fermentation technology according to claim 2, characterized in that: The aeration piece (220) includes a conduit (221) arranged through the lower part of the surface of the outer cylinder (110), one end of the conduit (221) is communicated with a hose (222), the end of the hose (222) away from the conduit (221) is communicated with a connecting pipe (223), and the connecting pipe (223) and the aeration disc (210) are communicated with a branch pipe (224).

4. The device for removing nitrogen and phosphorus from kitchen waste based on anaerobic fermentation technology according to claim 3, characterized in that: The lifting piece includes a reciprocating screw rod (330) installed on the output end of the motor (320), the bottom end of the reciprocating screw rod (330) penetrates to the lower part of the cylinder cover (130) and extends to the inner cavity of the inner cylinder (120), the surface of the reciprocating screw rod (330) is sleeved with a movable sleeve (340), and the movable sleeve (340) and the connecting pipe (223) are provided with a linkage piece.

5. The device for removing nitrogen and phosphorus from kitchen waste based on anaerobic fermentation technology according to claim 4, characterized in that: The linkage piece includes a sleeve (350) fixedly connected to the bottom of the movable sleeve (340), the bottom end of the sleeve (350) is fixedly connected with a support (360), the bottom of the inner cavity of the support (360) is fixedly connected with a bracket (370), and the bracket (370) is fixedly sleeved on the surface of the connecting pipe (223).

6. The device for removing nitrogen and phosphorus from kitchen waste based on anaerobic fermentation technology according to claim 5, characterized in that: The inner wall surface of the sleeve (350) is slidably connected with the surface of the reciprocating screw rod (330), and the top of the support (360) is provided with a through hole for the reciprocating screw rod (330) to pass through.

7. The device for removing nitrogen and phosphorus from kitchen waste based on anaerobic fermentation technology according to claim 5, characterized in that: The support (360) is a rectangular frame structure, and the feeding pipe and the dosing pipe between the outer cylinder (110) and the inner cylinder (120) penetrate to one side of the support (360) respectively.

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