Deodorizing equipment for odor purification of sludge dewatering machine room

Abstract

The utility model discloses deodorization equipment for odor purification of a sludge dewatering machine room, relates to the technical field of deodorization, and aims to improve the deodorization effect and avoid secondary pollution to the environment. The deodorization equipment comprises an equipment shell, an ion deodorization device, a chemical deodorization device and a pump drainage device. On one hand, the deodorization equipment can suck odor for purification treatment and is applied to the sludge dewatering machine room, air circulation of the sludge dewatering machine room can be guaranteed, the retention time of the odor in a room is shortened, on the other hand, the odor is purified in a combination mode of ion oxidation and chemical filtration, purification is efficient, and the deodorization effect is good. The concentration of odor-causing factors in the odor can be effectively reduced, no other secondary pollutants are generated, and the deodorization effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of deodorization, and in particular relates to a deodorization device used for purifying odor in a sludge dewatering room. Background Art

[0002] The sludge dewatering room is a facility used to treat sludge. Generally, mechanical equipment such as vacuum filter dewatering machine, pressure filter dewatering machine or belt filter press is used to remove water from the sludge, thereby reducing the volume and weight of the sludge and facilitating subsequent treatment. Since the sludge contains a large amount of organic matter, these organic substances will be oxidized and decomposed during the dehydration process to produce malodorous gases. The odor-causing factors contained in the malodorous gases are mainly NH3, H2S, mercaptan substances, etc.

[0003] At present, the common deodorization measures for sludge dewatering room odor purification are physical deodorization and chemical deodorization. Among them, the physical deodorization method mainly uses activated carbon to adsorb odor factors to purify the odor; the chemical deodorization method mainly neutralizes the odor factors by spraying deodorants.

[0004] Although the above deodorization measures can reduce odor to a certain extent, they have the following disadvantages: 1) The adsorption capacity of activated carbon is limited and needs to be replaced or regenerated regularly. Therefore, the cost of using only activated carbon adsorption for deodorization is relatively high; 2) Activated carbon adsorption only fixes the odor-causing factors in a specific area, but does not effectively remove them; 3) The sprayed deodorant easily escapes into the air, and the chemical substances it contains may cause secondary pollution to the environment; 4) The deodorization effect is not ideal. As the sludge treatment capacity of the sludge dewatering room increases, it is increasingly unable to meet the deodorization requirements of the sludge dewatering room. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a deodorizing device for odor purification in a sludge dewatering room, aiming to improve the deodorizing effect without causing secondary pollution to the environment.

[0006] The utility model solves the technical problem by adopting the following technical solution: a deodorizing device for purifying odor in a sludge dehydration room, comprising a device housing, an ion deodorizing device, a chemical deodorizing device and a pumping device;

[0007] The equipment housing has a first deodorizing chamber and a second deodorizing chamber that are connected to each other, and a smelly gas inlet that is connected to the first deodorizing chamber and a clean gas outlet that is connected to the second deodorizing chamber;

[0008] The ion deodorizing device comprises an ion generator, and the ion generator is arranged in the first deodorizing chamber;

[0009] The chemical deodorization device comprises a dry chemical deodorization unit disposed in the second deodorization chamber, wherein the dry chemical deodorization unit comprises a porous substrate and a dry chemical filter material layer coated on the porous substrate;

[0010] The exhaust device is arranged in the equipment housing, and can extract the odor through the odor inlet, and make it flow through the first deodorization chamber and the second deodorization chamber in sequence to be purified into clean air, and then discharged through the clean air outlet.

[0011] Furthermore, the ion generator is a photohydrogen ion generator, which includes a wide-bandwidth photon tube and a photocatalytic medium plate, and the photocatalytic medium plate can be irradiated by the light emitted by the wide-bandwidth photon tube.

[0012] Furthermore, the ion deodorizing device further comprises a gas filter, which is arranged in the first deodorizing chamber and is located in the upwind direction of the ion generator.

[0013] Furthermore, the gas filter is a plate filter detachably disposed in the device housing, and is disposed perpendicular to a first direction, wherein the first direction is a flow direction of the odor in the first deodorization chamber.

[0014] Furthermore, the ion deodorizing device also includes a remote controller, and the remote controller is communicatively connected to the ion generator.

[0015] Furthermore, the exhaust device is a fan, whose air inlet is connected to the second deodorization chamber, and whose air outlet is connected to the clean air outlet.

[0016] Furthermore, the second deodorizing chamber comprises at least two chambers which are connected in sequence, and at least two dry chemical deodorizing units are arranged in the chambers.

[0017] Furthermore, the dry chemical deodorization unit is drawable and arranged in the chamber.

[0018] Furthermore, the porous substrate is made of porous ceramic material.

[0019] The beneficial effects of the utility model are as follows: the odor to be purified can be made to flow in sequence along the odor inlet, the first deodorization chamber, the second deodorization chamber and the clean air outlet through the exhaust device; positive and negative oxygen ions can be generated in the first deodorization chamber through the ion generator, and when the odor flows through the first deodorization chamber, most of the odor-causing factors therein can be oxidized and decomposed in a short time to generate stable and harmless carbon dioxide, water and other substances, thereby achieving a high degree of purification of the odor; when the odor flows through the second deodorization chamber, the odor-causing factors that have not been oxidized and decomposed by the positive and negative oxygen ions can be adsorbed and retained by the porous substrate of the dry chemical deodorization unit, and then the dry The chemical filter material layer reacts with the adsorbed and retained odor-causing factors, destroys the material structure and gradually forms final products, such as salt, water and carbon dioxide, to achieve deep purification of odor to meet emission standards. It can be seen that the deodorization equipment can, on the one hand, extract odor for purification and apply it to the sludge dewatering room, which can ensure the air circulation in the sludge dewatering room and reduce the time that odor stays in the room. On the other hand, the odor is purified through the combination of "ion oxidation + chemical filtration", which has high purification efficiency and can effectively reduce the concentration of odor-causing factors in the odor, and no other secondary pollutants are produced, and the deodorization effect is good.

[0020] The technical effects brought about or directly produced by other technical features of the utility model will be described in detail in the subsequent specific implementation method section. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the implementation structure of the utility model;

[0022] Marked in the figure are: equipment housing 100, first deodorization chamber 110, second deodorization chamber 120, odor inlet 130, clean gas outlet 140, ion deodorization device 200, ion generator 210, gas filter 220, chemical deodorization device 300, dry chemical deodorization unit 310, and exhaust device 400. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings. The same reference numerals in the accompanying drawings represent components with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positions, and dimensional relationships based on the directions or position relationships shown in the accompanying drawings, and are only for the convenience of description, and do not indicate or imply that the referred device or component must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] When the term "multiple" indicates quantity, it usually refers to a quantity of three or more, for example: "multiple" usually refers to three or more. The expression "mainly composed of..." is interpreted as also containing structural components not mentioned in the sentence. The term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example: A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The term "communication connection" refers to the communication between connected devices through the transmission interaction of signals, which can be divided into wired connection and wireless connection; wired connection is usually cable, optical fiber and other connections; wireless connection is usually radio communication, Bluetooth, infrared, NFC and other connections. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] like Figure 1 As shown, the deodorization equipment for purifying odor in a sludge dehydration room includes an equipment housing 100, an ion deodorization device 200, a chemical deodorization device 300 and an exhaust device 400;

[0027] The device housing 100 is the outer shell of the deodorizing device, and is mainly used to install and protect other parts of the device; the device housing 100 has a first deodorizing chamber 110 and a second deodorizing chamber 120 that are connected to each other, and an odor inlet 130 connected to the first deodorizing chamber 110, and a clean air outlet 140 connected to the second deodorizing chamber 120;

[0028] The ion deodorizing device 200 includes an ion generator 210, which is disposed in the first deodorizing chamber 110; the ion generator 210 can ionize the gas molecules in the first deodorizing chamber 110 by high-voltage discharge or other means, and generate a large number of high-energy positive and negative oxygen ions, which have extremely strong oxidizing properties. When the odor flows through the first deodorizing chamber 110, most of the odor-causing factors can be oxidized and decomposed in a short time, generating stable and harmless carbon dioxide, water and other substances, thereby achieving a high degree of purification of the odor;

[0029] The chemical deodorization device 300 includes a dry chemical deodorization unit 310 disposed in the second deodorization chamber 120. The dry chemical deodorization unit 310 includes a porous substrate and a dry chemical filter material layer covered on the porous substrate. The porous substrate is a matrix made of a material with a porous structure, and contains a large number of micropores or pores inside. These micropores can provide a large specific surface area, so that it has good adsorption performance, filtration performance and air permeability. When the odor gas flows through the second deodorization chamber 120, the porous substrate of the dry chemical deodorization unit 310 can oxidize and decompose the positive and negative oxygen ions in the odor gas. The odor-causing factors are adsorbed and retained; the material for making the porous substrate can be porous ceramic materials, porous metals, porous carbon materials, etc.; the dry chemical filter material layer is formed by coating the existing chemical deodorizing agent on the porous substrate by spraying, coating, etc., which can react with the adsorbed and retained odor-causing factors, destroy the material structure and gradually form the final product, such as salt, water and carbon dioxide, to achieve deep purification of odor to meet the emission standards; the existing chemical deodorizing agent is mainly composed of a catalyst, an oxidant and a reaction indicator, and its specific composition and ratio are all existing technologies, which will not be repeated here;

[0030] The exhaust device 400 is arranged in the equipment housing 100, and can absorb odor through the odor inlet 130, and make it flow through the first deodorization chamber 110 and the second deodorization chamber 120 in sequence to be purified into clean gas, and then discharged to the outside through the clean gas outlet 140; the exhaust device 400 is mainly used to drive the gas to flow in the air flow channel in the equipment housing 100 to absorb odor and discharge clean gas, and it can be of various types, such as: fan, air pump, air compressor, etc.

[0031] The deodorization equipment is used in the sludge dewatering room. On the one hand, it can ensure the air circulation in the sludge dewatering room and reduce the time that odor stays in the room. On the other hand, it purifies the odor through the combination of "ion oxidation + chemical filtration". The purification is efficient and can effectively reduce the concentration of odor-causing factors in the odor. No other secondary pollutants are generated, and the deodorization effect is good.

[0032] In some embodiments of the utility model, the ion generator 210 is a photohydrogen ion generator, which includes a wide-bandwidth photon tube and a photocatalytic medium plate, and the photocatalytic medium plate can be irradiated by the light emitted by the wide-bandwidth photon tube. The photohydrogen ion generator can realize photohydrogen ion (PHT) deodorization, PHT is the abbreviation of Photon Hydroxylation Technology in English; specifically: light with a wavelength of 100 to 300nm is emitted by the wide-bandwidth photon tube, and hydroxyl radicals, gaseous hydrogen peroxide, oxygen ions and a large number of negative ions are generated under the catalysis of a photocatalytic medium plate made of a specific nano-scale multiple precious metal (such as: titanium, rhodium, silver, Pt, etc.), these advanced oxidizing substances can efficiently and quickly decompose and degrade the odor-causing factors in the odor, and can efficiently kill bacteria and viruses in the odor, and finally reduce them to water and carbon dioxide, purifying the odor to be fresh and clean. Usually, a photocatalytic medium material is coated on a porous substrate to form a photocatalytic medium plate to improve the photocatalytic efficiency. The material used to make the ion generator 210 needs to be corrosion-resistant, especially resistant to fatty acid corrosion. The enclosure protection level of the electrical controller of the ion generator 210 needs to reach IP65; each bracket and hanger of the ion generator 210 needs to be subjected to anti-corrosion treatment, such as galvanizing.

[0033] The advantages of photohydrogen ion (PHT) deodorization are: a. It produces hydroxyl free radicals as the main strong oxidant for waste gas treatment. Hydroxyl free radicals are non-toxic, harmless and odorless strong oxidants and do not pollute the atmospheric environment; b. When producing the same number of ions, the installed capacity of photohydrogen ion technology is about 1 / 10 of that of high-voltage corona ion technology, and the energy consumption is low; c. Photohydrogen ion technology uses the principle of photocatalysis to produce a large number of hydroxyl free radical ions. There is no discharge during the reaction, and it is highly safe.

[0034] For example Figure 1 As shown, in some embodiments of the present invention, the ion deodorizing device 200 further includes a gas filter 220, which is disposed in the first deodorizing chamber 110 and is located upwind of the ion generator 210. In this way, it can be ensured that the odor sucked into the first deodorizing chamber 110 first flows through the gas filter 220 and then flows to the ion generator 210, which is conducive to filtering out larger particles or foreign matter in the odor through the gas filter 220, so as to ensure the effect of subsequent purification treatment.

[0035] In some embodiments of the present invention, the gas filter 220 is a plate filter detachably disposed in the device housing 100, and is disposed perpendicular to the first direction, which is the flow direction of the odor in the first deodorization chamber 110. The plate filter is detachably disposed, which is convenient for disassembly and maintenance; it generally includes a metal frame and filter material disposed in the metal frame, and the pressure loss of the material making the filter material shall not be greater than 5 mmH2O; the plate filter is disposed perpendicular to the first direction, which is convenient for reducing the size and ensuring its odor filtering effect.

[0036] In some embodiments of the present invention, the ion deodorization device 200 further includes a remote controller, which is in communication with the ion generator 210. The ion deodorization device 200 generally also includes a local controller, so that two control modes, local and remote, can be realized. In the local control mode, the start and stop of the ion deodorization device 200 can be manually controlled on site; in the remote control mode, the start and stop of the ion deodorization device 200 can be controlled by the remote controller, and the operating status and alarm signal of the ion deodorization device 200 can be received.

[0037] In some embodiments of the present invention, the exhaust device 400 is a fan, whose air inlet is connected to the second deodorizing chamber 120, and whose air outlet is connected to the clean air outlet 140. Using a fan as the exhaust device 400 has the advantages of simple structure, convenient maintenance, high operating efficiency, etc., and is conducive to accurately controlling the flow rate of the odor in the equipment housing 100.

[0038] For example Figure 1 As shown, in some embodiments of the utility model, the second deodorization chamber 120 includes at least two chambers connected in sequence, and at least two dry chemical deodorization units 310 are arranged in the chamber. By dividing the second deodorization chamber 120 into two or more chambers, and arranging two or more dry chemical deodorization units 310 in each chamber, the effect of deep purification is further improved. It is preferred to arrange the chambers in layers, and connect the chambers in parallel to achieve a layered and parallel arrangement of multiple dry chemical deodorization units 310. Moreover, it is further preferred that the thickness of the dry chemical deodorization unit 310 in each layer is 0.3 to 0.5 m; in this way, the deep purification effect can be effectively improved, and the replacement of the dry chemical deodorization unit 310 can be facilitated.

[0039] In some embodiments of the utility model, the dry chemical deodorization unit 310 can be set in a retractable manner in the chamber. There can be many ways to set it retractable, for example: the dry chemical deodorization unit 310 is nested with the corresponding chamber, and another example: the dry chemical deodorization unit 310 is installed and matched with the corresponding chamber through a retractable mechanism such as a guide rail or a slide groove to achieve a smooth retractable movement. The retractable setting can facilitate the operator to extract the used dry chemical deodorization unit 310 and replace it with a new dry chemical deodorization unit 310 to ensure the deodorization effect. An equipment cover with an inspection door is usually provided on the equipment housing 100 to facilitate opening and closing the inspection door to replace the dry chemical deodorization unit 310.

[0040] In some embodiments of the present invention, at least one dry chemical deodorization unit 310 has a dry chemical filter material layer including an ammonia removal agent, which can react with ammonia to form a solid; the ammonia removal agent can be of various types, such as H3PO4, C6H8O7, etc.; the reaction formula for ammonia removal is as follows:

[0041] H3PO4+NH3=(NH4)H2PO4;

[0042] C6H8O7+2NH3=C6H 14 N2O7;

[0043] And / or, the dry chemical filter material layer of at least one dry chemical deodorization unit 310 includes a hydrogen sulfide removal agent, which can react with hydrogen sulfide to generate solids and water; the hydrogen sulfide removal agent can be of various types, such as KOH, NaMnO4, etc.; the reaction formula for hydrogen sulfide removal is as follows:

[0044] H2S+2KOH+2O2=K2SO4+2H2O;

[0045] 3H2S+8NaMnO4+4H2O=8MnO2+3K2SO4+2NaOH+6H2O;

[0046] And / or, the dry chemical filter material layer of at least one dry chemical deodorization unit 310 includes a mercaptan removal agent, which can react with mercaptan substances to generate solids, or generate solids and water; mercaptan substances include mercaptan, dimethylamine, carbon sulfide, etc., and the mercaptan removal agent can be of multiple types, for example: NaMnO2.

[0047] The dry chemical filter layer also has the following advantages: 1. It can be landfilled and will not release absorbed gases; 2. Its life span can be accurately predicted; 3. After production, it can be tested immediately to ensure its effectiveness; 4. It can remove a variety of odor-causing factors.

[0048] The present invention is described in detail in detail and is not intended to be limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terms used herein are selected to best explain the principles, practical applications, or technological advances of the embodiments, or to enable other persons skilled in the art to understand the embodiments disclosed herein, compared to the technology found on the market.

[0049] It should be understood that, for the sake of clarity, certain features of the present invention described in the context of separate embodiments may also be provided in combination in a single embodiment. Conversely, for the sake of brevity, various features of the present invention described in the context of a single embodiment may also be provided individually or in any suitable sub-combination, or in any other described embodiment of the present invention where appropriate. Certain features described in the context of various embodiments are not considered essential features of those embodiments unless the embodiments do not work without those features.

Claims

1. Deodorization equipment used for odor purification in sludge dewatering room, characterized by: It comprises an equipment housing (100), an ion deodorizing device (200), a chemical deodorizing device (300) and an exhaust device (400); The device housing (100) comprises a first deodorizing chamber (110) and a second deodorizing chamber (120) which are connected to each other, and a smell inlet (130) which is connected to the first deodorizing chamber (110), and a clean air outlet (140) which is connected to the second deodorizing chamber (120); The ion deodorizing device (200) comprises an ion generator (210), and the ion generator (210) is arranged in the first deodorizing chamber (110); The chemical deodorization device (300) comprises a dry chemical deodorization unit (310) arranged in the second deodorization chamber (120), wherein the dry chemical deodorization unit (310) comprises a porous substrate and a dry chemical filter material layer coated on the porous substrate; The exhaust device (400) is arranged in the equipment housing (100), and can absorb the odor through the odor inlet (130), and make it flow through the first deodorization chamber (110) and the second deodorization chamber (120) in sequence to be purified into clean air, and then discharged to the outside through the clean air outlet (140).

2. The deodorizing equipment for purifying odor in a sludge dewatering room according to claim 1 is characterized by: The ion generator (210) is a photohydrogen ion generator, which comprises a wide-bandwidth photon tube and a photocatalytic medium plate, and the photocatalytic medium plate can be irradiated by light emitted by the wide-bandwidth photon tube.

3. The deodorizing equipment for purifying odor in a sludge dewatering room according to claim 1 is characterized in that: The ion deodorizing device (200) further comprises a gas filter (220), wherein the gas filter (220) is arranged in the first deodorizing chamber (110) and is located in the upwind direction of the ion generator (210).

4. The deodorizing equipment for purifying odor in a sludge dewatering room according to claim 3 is characterized in that: The gas filter (220) is a plate filter detachably disposed in the device housing (100), and is disposed perpendicular to a first direction, wherein the first direction is the flow direction of the odor in the first deodorization chamber (110).

5. The deodorizing equipment for purifying odor in a sludge dewatering room according to claim 1 is characterized by: The ion deodorizing device (200) further comprises a remote controller, which is communicatively connected to the ion generator (210).

6. The deodorizing equipment for purifying odor in a sludge dewatering room according to claim 1 is characterized by: The exhaust device (400) is a fan, whose air inlet is connected to the second deodorizing chamber (120), and whose air outlet is connected to the clean air outlet (140).

7. The deodorizing device for purifying odor in a sludge dewatering room according to any one of claims 1 to 6, characterized in that: The second deodorizing chamber (120) comprises at least two chambers that are connected in sequence, and at least two dry chemical deodorizing units (310) are arranged in the chambers.

8. The deodorizing device for purifying odor in a sludge dewatering room according to claim 7, characterized in that: The dry chemical deodorizing unit (310) is disposed in the chamber in a drawable manner.

9. The deodorizing equipment for purifying odor in a sludge dewatering room according to claim 8, characterized in that: The porous substrate is made of porous ceramic material.

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