CN216890602U - Van-type low-temperature sludge drying equipment - Google Patents
Van-type low-temperature sludge drying equipment Download PDFInfo
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- CN216890602U CN216890602U CN202123084915.XU CN202123084915U CN216890602U CN 216890602 U CN216890602 U CN 216890602U CN 202123084915 U CN202123084915 U CN 202123084915U CN 216890602 U CN216890602 U CN 216890602U
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Abstract
The utility model provides a van-type low-temperature sludge drying device, relates to the field of sludge drying machines, solves the problem of odor in the operation process in the prior art, and comprises a box body which is arranged in a closed manner, and a middle partition plate and a heat pump system which are arranged in the box body; the middle partition plate divides the interior of the box body into an independent material area and an independent equipment area, and an air outlet and an air return inlet which are used for communicating the material area with the equipment area are formed in the middle partition plate; the heat pump system is arranged in the equipment area and comprises a compressor, a condenser, an evaporator and a circulating fan, wherein the compressor, the condenser and the evaporator are sequentially connected to form a circulating loop, and the circulating fan is arranged at the condenser; a first air duct connected with the air outlet and the air return inlet is arranged in the equipment area; in the first air duct, an evaporator, a condenser and a circulating fan are sequentially arranged from an air return inlet to an air outlet. Compared with the prior art, the utility model can avoid the problem of odor in operation to the utmost extent.
Description
Technical Field
The utility model relates to the field of sludge drying machines, in particular to a van-type low-temperature sludge drying device.
Background
The harmless sludge reduction is an important link of sludge treatment, and directly influences the effect and cost of sludge resource treatment. At present, two main means of sludge reduction are mechanical dehydration and heat drying. Wherein the heat drying is divided into medium-high temperature direct-discharge drying and low-temperature dehumidification drying.
The medium-high temperature direct-discharge drying equipment comprises traditional equipment such as high-temperature drum drying, disc drying, paddle drying and the like, and is characterized in that the investment of fixed facilities is relatively low, but equipment such as a heat source (such as natural gas, high-pressure steam and the like), a natural gas supply facility, a hot blast stove, a burner, a steam boiler, a water treatment system, waste gas (odor) treatment and the like is required to be configured, so that the comprehensive operation cost is high, and is generally higher than that of low-temperature drying by more than 40%.
The low-temperature dehumidification drying device is a sealed low-temperature dehumidification drying device, and the sealed low-temperature dehumidification drying device has the characteristics of low operation cost, small occupied area, simple operation process and high automation degree, but the operation process has the process of exchanging with the outside air, so that the problems of serious odor and heat loss are caused, and the problems of poor air supply smoothness, sludge drying dryness and humidity unevenness and back mixing and drying are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to design a van-type low-temperature sludge drying device which can prevent odor in operation to the maximum extent.
The utility model is realized by the following technical scheme:
a van-type low-temperature sludge drying device comprises a box body which is arranged in a closed manner, and a middle partition plate and a heat pump system which are arranged in the box body; the middle partition plate divides the interior of the box body into a material area and an equipment area which are independent, and an air outlet and an air return inlet which are used for communicating the material area with the equipment area are formed in the middle partition plate; the heat pump system is arranged in the equipment area and comprises a compressor, a condenser, an evaporator and a circulating fan, the compressor, the condenser and the evaporator are sequentially connected to form a circulating loop, and the circulating fan is arranged at the condenser; a first air duct connected with the air outlet and the air return inlet is arranged in the equipment area; in the first air channel, the evaporator, the condenser and the circulating fan are sequentially arranged from the air return inlet to the air outlet.
When the structure is arranged, the heat pump system is arranged in the equipment area of the closed box body, the equipment area and the material area are separated through the middle partition plate and are communicated with the air return port through the air outlet, the condenser is arranged closer to the air outlet in the first air channel, and the process that heat is gradually transferred to the air outlet is completed. Hot air in the equipment area can be blown to the material area through the circulating fan to be used for drying sludge, return air with a large amount of water vapor reenters the equipment area through the return air inlet and condenses the water vapor in the return air through the evaporator along the first air channel to generate condensed water to realize drying, and internal circulation of the hot air is completed. Therefore, the equipment can complete sludge drying in the closed box body, has no air exchange with the external environment, has no loss of redundant heat in the operation process, and can furthest avoid the problem of odor in the drying operation.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: and a material bin which is communicated up and down is also arranged in the material area, and the material bin is arranged above the air outlet and below the air return inlet.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: the surrounding wall plates of the material bin are provided with perforated plates with a plurality of through holes.
When adopting above-mentioned structure that sets up, let the material feed bin adopt the perforated plate welding to piece together the system and form, can guarantee the patency of air supply, reduce the air supply resistance to can promote the steam circulation, make mud stoving more even.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: and an air filter is arranged at the air return opening.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: the circulating fan is arranged at the air outlet.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: the condenser includes sensible heat condenser and latent heat condenser, the compressor sensible heat condenser latent heat condenser with the evaporimeter connects gradually and constitutes circulation circuit.
When the structure is adopted, the two condensers are adopted to improve the heat transfer efficiency in the heat pump system and keep higher drying temperature.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: the equipment area is also internally provided with a heat exchanger, and the heat exchanger is provided with a refrigerant channel and a heating medium channel which are mutually independent;
in the first air channel, a section from the evaporator to the condenser is connected to a refrigerant channel of the heat exchanger, and a section from the return air inlet to the evaporator is connected to a heat medium channel of the heat exchanger.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: the box body is connected with a heat extraction system, the heat extraction system is of a heat exchanger type structure, an inlet and an outlet of a heat medium channel of the heat extraction system are both communicated with the air outlet in the first air channel to the section of the heat exchanger, and an inlet and an outlet of a refrigerant channel of the heat extraction system are both communicated with the external environment of the box body; fans are arranged in the heat medium channel and the refrigerant channel of the heat extraction system.
When the structure is adopted, the heat extraction system can enable hot air in the box body and cold air outside the box body to finish heat transfer under the condition of no air exchange, and can exhaust redundant heat in the box body, so that the drying temperature can be maintained at the optimal level.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: a second air duct connected with the air outlet and the air return inlet is further arranged in the equipment area;
and in the second air channel, the condenser and the circulating fan are sequentially arranged from the air return inlet to the air outlet.
When the structure is adopted, hot air in the second air channel directly flows to the condenser for reheating after coming out from the air return port and then is sent into the material area by the circulating fan, so that the material area can be effectively ensured to be at a higher temperature.
In order to further better implement the utility model, the following arrangement structure is particularly adopted: the bottom of the box body is connected with a base.
The utility model has the following advantages and beneficial effects:
according to the utility model, the heat pump system is arranged in the equipment area of the closed box body, the equipment area and the material area are separated through the middle partition plate and are communicated with the air return port through the air outlet, the condenser is arranged in the first air channel and is closer to the air outlet, and the process of gradually transferring heat to the air outlet is completed. Hot air in the equipment area can be blown to the material area through the circulating fan to be used for drying sludge, return air with a large amount of water vapor reenters the equipment area through the return air inlet and condenses the water vapor in the return air through the evaporator along the first air channel to generate condensed water to realize drying, and internal circulation of the hot air is completed. Therefore, the equipment can complete sludge drying in the closed box body, has no air exchange with the external environment, has no loss of redundant heat in the operation process, and can furthest avoid the problem of odor in the drying operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the appearance structure of a box-type low-temperature sludge drying device;
FIG. 2 is a schematic diagram of the internal structure of the compartment type low-temperature sludge drying device on the upper oblique side;
FIG. 3 is a schematic view of the internal structure of the inclined lower side of the box-type low-temperature sludge drying device;
FIG. 4 is a schematic diagram of the internal structure of the equipment region side of the box type low-temperature sludge drying equipment;
FIG. 5 is a schematic view of an air duct of the van-type low-temperature sludge drying device (the air duct is indicated by a thick solid line and the direction of the air duct is indicated by an arrow);
labeled as:
1. a box body;
2. a middle partition plate;
3. a material bin;
41. a compressor; 42. a gas-liquid separator; 43. a sensible heat condenser; 44. a latent heat condenser; 45. a heat exchanger; 46. an evaporator; 47. a circulating fan; 48. an air filter;
5. a heat removal system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
Example 1:
a box-type low-temperature sludge drying device can eliminate the problem of odor in operation to the maximum extent, as shown in figures 1, 2, 3, 4 and 5, and is particularly provided with the following structures:
the van-type low-temperature sludge drying equipment comprises a box body 1 which is arranged in a closed mode, and a middle partition plate 2 and a heat pump system which are arranged in the box body 1, wherein the box body 1 is a square box structural member formed by splicing six insulation boards. The bottom of the box body 1 is generally padded with a base formed by welding and splicing channel steel.
The middle clapboard 2 is vertically arranged and positioned in the middle of the box body 1, and the middle clapboard 2 divides the interior of the box body 1 into an independent material area and an independent equipment area. An air outlet and an air return inlet are respectively formed in the bottom position and the top position of the middle partition plate 2, the air outlet and the air return inlet are respectively communicated with the material area and the equipment area, and air flow circulating between the material area and the equipment area can only pass through the air outlet and the air return inlet basically.
The heat pump system is integrally installed in the equipment area in the cabinet 1, and includes a compressor 41, a condenser, an evaporator 46, and a circulating fan 47, the compressor 41, the condenser, and the evaporator 46 are connected in sequence and constitute a circulation loop, and in addition, the heat pump system is designed according to the existing theory, and equipment necessary for the function of the holder is also included therein, such as a gas-liquid separator 42, a throttle valve, and the like. The circulation fan 47 of the present invention is disposed at a position near the condenser for supplying hot air to the material region.
A first air channel is formed in the equipment area of the box body 1 through a heat pump system, the middle partition plate 2, the frame structure of the box body 1 and necessary baffles, and the first air channel is connected with the air outlet and the air return inlet to serve as the head and tail parts of the first air channel. In the first air duct, an evaporator 46, a condenser, and a circulating fan 47 are provided in this order from the return air inlet to the air outlet.
The refrigerant of the heat pump system flows from the compressor 41, then sequentially passes through the condenser, the throttle valve and the evaporator 46, and then returns to the compressor 41, thereby completing the whole heat transfer process. The hot air delivered by the air supply system enters the material area after coming out of the circulating fan 47, transfers heat to wet materials in the material area, then sequentially passes through the air return inlet, the evaporator 46 and the condenser, and then returns to the circulating fan 47 to complete the whole circulation, and the condensed water in the hot air is discharged through the evaporator 46.
The van-type low-temperature sludge drying equipment has the advantages that the heat pump system is arranged in the equipment area of the closed box body 1, the equipment area and the material area are separated through the middle partition plate 2 and are communicated with the air return port through the air outlet, the condenser is arranged in the first air channel and is closer to the air outlet, and the process that heat is gradually transferred to the air outlet is completed. Hot air in the equipment area can be blown to the material area through the circulating fan 47 to be used for drying sludge, return air with a large amount of water vapor reenters the equipment area through the return air inlet and is condensed along the first air channel path evaporator to generate condensed water for drying, and internal circulation of the hot air is completed. Therefore, the equipment can complete sludge drying in the closed box body 1, has no air exchange with the external environment, has no loss of redundant heat in the operation process, and can furthest avoid the problem of odor in the drying operation.
As the preferred scheme that sets up of this embodiment, still be provided with a material storehouse 3 that is used for specially preventing the mud board in the material region in the box 1, this material storehouse mainly is pieced together by four steel sheet welding and forms, forms the feed bin that link up from top to bottom, and material storehouse 3 wholly sets up in the top of air outlet, the below position of return air inlet to make the hot-blast ability that comes out from the air outlet from down and link up whole material storehouse 3. Further, as this embodiment material storehouse 3's preferred scheme of setting, this material storehouse 3's wallboard all around sets up the perforated plate for having a plurality of through-holes, and this preferred scheme of setting lets material storehouse 3 adopt the perforated plate welding to piece together the system and forms, can guarantee the unobstructed nature of air supply, reduces the air supply resistance to can promote circulation of heat, make mud stoving more even.
Example 2:
the embodiment is further optimized on the basis of the above embodiment, and in order to further better implement the utility model, the following arrangement structure is particularly adopted:
in this embodiment, an air filter 48 is installed at the air return opening of the middle partition board 2 in the box body 1, so that the return air entering the equipment area from the air return opening can enter the equipment area only through the air filter 48, and sludge particles in the return air can be filtered.
Preferably, the circulating fans 47 in this embodiment are arranged in two groups side by side, and the two groups of circulating fans 47 are directly installed at the air outlet.
Example 3:
the embodiment is further optimized on the basis of the above embodiment, and in order to further better implement the utility model, the following arrangement structure is particularly adopted:
in the present embodiment, the number of condensers is two, and the two condensers are divided into a sensible heat condenser 43 and a latent heat condenser 44 according to their functions. The compressor 41, the sensible heat condenser 43, the latent heat condenser 44, and the evaporator 46 are connected in sequence and constitute a circulation loop.
The heat pump system adopts reverse Carnot cycle, the refrigerant flows out of the compressor 41 and then sequentially passes through the sensible heat condenser 43, the latent heat condenser 44, the throttle valve and the evaporator 46 and then returns to the compressor 41 to finish the whole heat transfer process, and the two condensers are adopted to improve the heat transfer efficiency in the heat pump system and keep higher drying temperature.
Example 4:
the embodiment is further optimized on the basis of the above embodiment, and in order to further better implement the utility model, the following arrangement structure is particularly adopted:
in this embodiment, a heat exchanger 45 is further disposed in the device area of the box 1, the heat exchanger 45 has a conventional structure, and has a cooling medium channel and a heating medium channel which are independent of each other, the cooling medium channel has a cooling medium inlet and a cooling medium outlet, and the heating medium channel has a heating medium inlet and a heating medium outlet. In the first air duct, a section from the evaporator 46 to the condenser is connected to a refrigerant channel of the heat exchanger 45, and a section from the return air inlet to the evaporator 46 is connected to a heat medium channel of the heat exchanger 45.
The air supply system in this embodiment adopts four-effect circulation, and the conveyed hot air enters the material area after coming out of the circulating fan 47, passes through the material bin 3, transfers heat to wet materials in the material bin 3, then sequentially passes through the air filter 48, the heat medium channel of the heat exchanger 45, the evaporator 46, the refrigerant channel of the heat exchanger 45, and the condenser (sensible heat condenser 43 and latent heat condenser 44), and then returns to the circulating fan 47, so as to complete the circulation of the whole four-effect system, and the condensed water in the four-effect system is discharged through the evaporator 46.
Example 5:
the embodiment is further optimized on the basis of the above embodiment, and in order to further better implement the utility model, the following arrangement structure is particularly adopted:
in this embodiment, the top of the box 1 is connected with a heat removal system 5, the heat removal system 5 is configured as a heat exchanger type structure, wherein the inside of the casing of the heat removal system 5 is separated into two independent channels by an inner partition to form a heat medium channel and a refrigerant channel, an inlet and an outlet of the heat medium channel of the heat removal system 5 are both communicated with a section from the air outlet in the first air channel to the heat exchanger 45, and an inlet and an outlet of the refrigerant channel of the heat removal system 5 are both communicated with the external environment of the box 1. Fans are arranged in the heat medium channel and the refrigerant channel of the heat extraction system 5.
The box-type low-temperature sludge drying equipment can transfer heat between hot air in the box body 1 and cold air outside the box body 1 under the condition of no air exchange by utilizing the heat extraction system 5, and can discharge redundant heat in the box body 1, so that the drying temperature can be maintained at the optimal level.
Example 6:
the embodiment is further optimized on the basis of the above embodiment, and in order to further better implement the utility model, the following arrangement structure is particularly adopted:
in this embodiment, a second air duct separated by the heat pump system related equipment, the middle partition plate 2, the frame of the box body 1 and the baffle is further disposed in the equipment area in the box body 1, and the second air duct is connected with the air outlet and the air return inlet as the head and the tail of the second air duct. The second air duct and the first air duct are shared at one end entering the equipment area from the air outlet and one section leading to the air outlet from the equipment area.
In the second air duct, a condenser and a circulating fan 47 are provided in order from the return air inlet to the air outlet.
The box-type low-temperature sludge drying equipment provided by the utility model is provided with the first air channel and the second air channel, hot air in the second air channel is directly led to the condenser after coming out from the air return port and is heated again and then is sent into the material area by the circulating fan 47, so that the material area can be effectively ensured to be at a higher temperature.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (10)
1. The utility model provides a van-type low temperature sludge drying equipment which characterized in that: the heat pump system comprises a box body (1) which is arranged in a closed manner, and a middle partition plate (2) and a heat pump system which are arranged in the box body (1);
the middle partition plate (2) divides the interior of the box body (1) into a material area and an equipment area which are independent, and the middle partition plate (2) is provided with an air outlet and an air return inlet which are used for communicating the material area with the equipment area;
the heat pump system is arranged in the equipment area and comprises a compressor (41), a condenser, an evaporator (46) and a circulating fan (47), the compressor (41), the condenser and the evaporator (46) are sequentially connected to form a circulating loop, and the circulating fan (47) is arranged at the condenser;
a first air duct connected with the air outlet and the air return inlet is arranged in the equipment area; in the first air channel, the evaporator (46), the condenser and the circulating fan (47) are arranged in sequence from the air return inlet to the air outlet.
2. The van type low-temperature sludge drying device according to claim 1, wherein: still be provided with material feed bin (3) that link up from top to bottom in the material region, material feed bin (3) set up in the top of air outlet, the below position of return air inlet.
3. The van type low-temperature sludge drying device according to claim 2, wherein: the surrounding wall plates of the material bin (3) are provided with perforated plates with a plurality of through holes.
4. The van type low-temperature sludge drying device according to claim 1, wherein: an air filter (48) is arranged at the air return opening.
5. The van-type low-temperature sludge drying equipment according to claim 1, wherein: and the circulating fan (47) is arranged at the air outlet.
6. The van type low-temperature sludge drying device according to claim 1, wherein: the condenser includes sensible heat condenser (43) and latent heat condenser (44), compressor (41) sensible heat condenser (43) latent heat condenser (44) with evaporimeter (46) connect gradually and constitute circulation circuit.
7. The van type low-temperature sludge drying device according to claim 1, wherein: a heat exchanger (45) is also arranged in the equipment area;
in the first air channel, a section from the evaporator (46) to the condenser is connected to a refrigerant channel of the heat exchanger (45), and a section from the return air inlet to the evaporator (46) is connected to a heat medium channel of the heat exchanger (45).
8. The van type low-temperature sludge drying device according to claim 7, wherein: the box body (1) is connected with a heat exhaust system (5), the heat exhaust system (5) is of a heat exchanger type structure, an inlet and an outlet of a heat medium channel of the heat exhaust system (5) are communicated with a section from an air outlet in the first air channel to the heat exchanger (45), and an inlet and an outlet of a refrigerant channel of the heat exhaust system (5) are communicated with the external environment of the box body (1); fans are arranged in the heat medium channel and the refrigerant channel of the heat removal system (5).
9. The van type low-temperature sludge drying equipment according to any one of claims 1 to 8, wherein: a second air duct connected with the air outlet and the air return inlet is further arranged in the equipment area;
and in the second air channel, the condenser and the circulating fan (47) are sequentially arranged from the air return inlet to the air outlet.
10. The van type low-temperature sludge drying device according to claim 1, wherein: the bottom of the box body (1) is connected with a base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123084915.XU CN216890602U (en) | 2021-12-09 | 2021-12-09 | Van-type low-temperature sludge drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123084915.XU CN216890602U (en) | 2021-12-09 | 2021-12-09 | Van-type low-temperature sludge drying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216890602U true CN216890602U (en) | 2022-07-05 |
Family
ID=82205227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123084915.XU Active CN216890602U (en) | 2021-12-09 | 2021-12-09 | Van-type low-temperature sludge drying equipment |
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| Country | Link |
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| CN (1) | CN216890602U (en) |
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2021
- 2021-12-09 CN CN202123084915.XU patent/CN216890602U/en active Active
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