Comprehensive treatment device for steaming acid recovery

Abstract

The utility model relates to the technical field of waste acid treatment, in particular to a steaming acid recovery comprehensive treatment device which comprises a front treatment body, a heating evaporation body, a condensation body and a rear treatment body which are communicated in sequence, a preheating sleeve is fixedly installed between the front treatment body and the heating evaporation body, and the preheating sleeve is sleeved on the heating evaporation body. The heating evaporation body is sequentially and fixedly provided with a plurality of treatment cavities with increasing temperatures in the treatment direction, heating bodies are installed on the axes and the edge sides of the treatment cavities correspondingly, and the multiple treatment cavities can gradually evaporate liquid with different boiling points through increasing temperatures and input the liquid into a condensation body to be collected; the heating efficiency is improved by preheating and then synchronously heating the inner side and the outer side; the problem of low treatment efficiency caused by overlong heating evaporation time of the acid-containing waste liquid is solved.

Description

Technical Field

[0001] This utility model relates to the field of waste acid treatment technology, specifically a comprehensive treatment device for acid evaporation and recovery. Background Technology

[0002] Existing methods for evaporating acidic wastewater involve prolonged heating times and difficulty in achieving uniform heating, leading to excessively long evaporation times and consequently low efficiency. For example, a novel high-efficiency acid recovery device (application number "201921137104.1") progressively filters, separates, and recovers waste acid, offering advantages such as high and stable recovery efficiency, low cost, and reduced waste acid discharge. However, this device still only begins heating and evaporating the acidic wastewater after it enters the evaporation tank, thus retaining the problem of low efficiency.

[0003] Therefore, this utility model provides a comprehensive acid recovery and treatment device to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the heating and evaporation time of acidic waste liquid is too long, resulting in low treatment efficiency.

[0005] This utility model provides the following technical solution: an acid evaporation recovery and comprehensive treatment device, comprising a pretreatment body, a heating evaporator, a condenser, and a posttreatment body, wherein the pretreatment body, the heating evaporator, the condenser, and the posttreatment body are connected in sequence, a preheating jacket is fixedly installed between the pretreatment body and the heating evaporator, and multiple processing chambers with increasing temperature are fixedly arranged in sequence along the processing direction of the heating evaporator, wherein heating elements are respectively installed on the axis and edge side of the processing chambers, and the multiple processing chambers can gradually evaporate liquids with different boiling points by increasing temperature and input them into the condenser for collection.

[0006] The heating evaporator includes a cylinder, partitions, an exhaust port, and a connection port. Multiple partitions are fixedly installed at intervals along the axis inside the cylinder to form multiple processing chambers. An exhaust port is fixedly installed on the upper part of each processing chamber, and a connection port is opened at the bottom of each processing chamber.

[0007] The heating element includes an external heating element and an internal heating element. An external heating element is fixedly installed on the outside of the processing chamber, and an internal heating element that penetrates multiple processing chambers is rotatably installed at the axis of the heating evaporator.

[0008] The temperatures of the external and internal heating elements increase along the flow direction of the acidic waste liquid.

[0009] The preheating jackets are spaced in multiple intervals, and the temperature of the multiple preheating jackets increases along the flow direction.

[0010] The pretreatment body includes a filter housing, an upper filter body, and a lower filter body. An inclined upper filter body is fixedly installed in the upper part of the filter housing. A drain port communicating with a heating evaporator is opened at the bottom of the filter housing. A cylindrical lower filter body is fixedly installed at the drain port.

[0011] The condenser is connected in parallel to the exhaust ports in the processing chambers via multiple connecting pipes.

[0012] A conductive slip ring is fixedly installed at the end of the rotating shaft, and an electric brush is fixedly installed inside the cylinder.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. In this invention, the acidic solution filtered by the pretreatment body can be gradually preheated as it enters the heating evaporator through the first pipe and preheating jacket, thereby improving the efficiency of subsequent heating and evaporation. Furthermore, the axially rotating inner heating body in the treatment chamber, together with the spirally wound outer heating body at the edge, can work together to synchronously heat and evaporate the acidic waste liquid, thereby improving the uniformity of heating and evaporation of the acidic waste liquid, and thus improving the efficiency of heating and evaporation of the acidic waste liquid.

[0015] 2. This utility model can gradually filter acidic waste liquid through the pretreatment body, which is beneficial to improve the filtration speed and filtration effect at the same time, and avoids the solid particles in the acidic waste liquid from being heated and evaporated, causing scaling or clogging of pipes, thus improving service life.

[0016] 3. This utility model can gradually heat and evaporate acidic waste liquid through a heating evaporator, a processing chamber with increasing temperature, an internal heating body, and an external heating body. This allows substances with different boiling points to be gradually discharged into the condenser for classified collection, facilitating subsequent recycling and comprehensive treatment. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This utility model Figure 1 Enlarged structure at point A in the middle.

[0020] In the diagram: 1. Pretreatment body; 11. First pipe; 12. Filter housing; 13. Upper filter body; 14. Lower filter body; 2. Heating evaporator; 21. Processing chamber; 22. Heating element; 221. External heating element; 222. Internal heating element; 2221. Motor; 2222. Rotating shaft; 2223. Heating rod; 2224. Brush; 2225. Conductive slip ring; 23. Cylinder; 24. Baffle; 25. Exhaust port; 26. Connection port; 3. Condenser; 4. Posttreatment body; 5. Preheating jacket. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely represents some embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and "back side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this utility model is conventionally placed during use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0024] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] To address the technical problem of low treatment efficiency caused by excessively long heating and evaporation time of acidic waste liquid, this disclosure provides an integrated acid recovery and treatment device, including a pretreatment body 1, a heating evaporator 2, a condenser 3, and a posttreatment body 4. The pretreatment body 1, heating evaporator 2, condenser 3, and posttreatment body 4 are connected in sequence. A preheating jacket 5 is fixedly installed between the pretreatment body 1 and the heating evaporator 2. The heating evaporator 2 has multiple processing chambers 21 with increasing temperature fixedly arranged in sequence along the processing direction. Heating elements 22 are respectively installed on the axis and edge side of the processing chambers 21. The multiple processing chambers 21 can gradually evaporate liquids with different boiling points by increasing the temperature and input them into the condenser 3 for collection.

[0026] A first pipe 11 is fixedly connected between the pretreatment body 1 and the heating evaporator 2, and a preheating sleeve 5 is fixedly installed on the surface of the first pipe 11.

[0027] In the treatment of waste acid solution, the waste acid solution is transported to the pretreatment unit 1 through any existing liquid-driving structure or device, such as a water pump, where it is filtered. After filtration, the waste acid solution is then transported along the first pipe 11 to the heating evaporator 2. During this process, the preheating jacket 5 preheats the incoming waste acid solution, thereby improving the efficiency of subsequent heating and evaporation. After entering the heating evaporator 2, the acidic waste liquid undergoes heating and evaporation through a progressively increasing temperature processing chamber 21, causing water and volatile acids with different boiling points to gradually evaporate and be collected in the condenser 3. The remaining concentrated liquid in the heating evaporator 2 enters the post-treatment unit 4 for subsequent neutralization, precipitation, or separation.

[0028] The heating evaporator 2 includes a cylinder 23, partitions 24, exhaust ports 25 and connection ports 26. Multiple partitions 24 are fixedly installed at intervals along the axis inside the cylinder 23 to form multiple processing chambers 21. An exhaust port 25 is fixedly installed on the upper part of each processing chamber 21, and a connection port is opened at the bottom of each processing chamber 21.

[0029] It should be noted that multiple exhaust ports 25 are connected to the condenser 3 through connecting pipes. The condenser 3 adopts the condenser in the prior art. It should be emphasized that multiple condensers can be set and correspond to the exhaust ports 25 and connecting pipes respectively, or a single condenser can be set to contain multiple condensation spaces to independently collect different steam discharged from the heating evaporator 2.

[0030] It should be noted that a fan can also be fixedly installed in the exhaust port 25 or the connecting pipe, so as to facilitate the delivery of heated steam to the condenser.

[0031] It should be noted that a control valve is fixedly installed in the connection port 26, thereby opening the connection port 26 to discharge the acidic waste liquid. Furthermore, control valves are also fixedly installed in the exhaust port 26 and the first pipe 11, facilitating the control of the supply of acidic waste liquid and the air used for heating and evaporation.

[0032] It should be noted that the post-processing unit 4 can be any structure or device in the prior art that processes the concentrated liquid after evaporation of acidic waste liquid, such as a waste liquid reaction tank for neutralizing the concentrated liquid of acidic waste liquid, a filter press or centrifuge for solid-liquid separation, a nanofiltration membrane for separating salt and acid, or a multi-stage evaporator for further evaporation.

[0033] The acidic waste liquid, filtered by the pretreatment unit 1, enters the cylinder 23 through the first pipe 11. It then enters the uppermost treatment chamber 21, where it undergoes heating and evaporation at the lowest temperature. This process evaporates substances with the lowest boiling point. The vapor from the evaporation of these substances exits through the exhaust port 25 in the uppermost treatment chamber 21 and enters the condenser 3 for condensation and collection. The remaining acidic waste liquid then enters the next layer through the connection port 26 for further heating and evaporation, thus evaporating substances with increasing boiling points and undergoing the same treatment process. Steam is fed into the condenser 3 through the exhaust port 25 of chamber 21 for collection. The remaining material enters the next processing chamber 21 through the connection port 26 until it enters the lowest processing chamber 21 with the highest heating temperature. The lowest processing chamber 21 with the highest heating temperature heats and evaporates the substance with the highest boiling point in the acidic waste liquid. The steam formed by the heating and evaporation of the substance with the highest boiling point enters the condenser 3 through the exhaust port 25 of the processing chamber 21 for collection. The remaining concentrated liquid enters the post-processing body 4 through the connection port 26 of the lowest processing chamber 21 for subsequent neutralization, precipitation or separation treatment.

[0034] For example, in the first processing chamber 21, the heating temperature is 56°C to evaporate acetone; in the second processing chamber 21, the heating temperature is 61°C to evaporate chloroform; in the third processing chamber 21, the heating temperature is 76°C to evaporate carbon tetrachloride; in the fourth processing chamber 21, the heating temperature is 86°C to evaporate nitric acid; in the fifth processing chamber 21, the heating temperature is 100 to 110°C to evaporate azeotropic substances containing water that require distillation separation, such as hydrochloric acid or formic acid; and in the sixth processing chamber 21, the heating temperature is 118°C to evaporate acetic acid.

[0035] It is important to note that the temperature control method and specific parameters are very mature technologies in the existing field. For example, the heating and evaporation temperature is controlled by controlling the temperature of the heat transfer oil in the external heating element and the power of the electrically heated heating rod. These will not be elaborated on here.

[0036] The heating element 22 includes an external heating element 221 and an internal heating element 222. The external heating element 221 is fixedly installed on the outside of the processing chamber 21, and the internal heating element 222, which penetrates multiple processing chambers 21, is rotatably installed at the axis of the heating evaporator 2. After the acidic waste liquid enters the processing chamber 21, the external heating element 221 can heat the acidic waste liquid from the edge of the processing chamber 21, and the internal heating element 222 can heat the acidic waste liquid from the center. Thus, the acidic waste liquid is heated synchronously from both inside and outside through the cooperation of the external heating element 221 and the internal heating element 222, which helps to improve the heating uniformity of the acidic waste liquid, thereby improving the heating treatment effect and efficiency of the acidic waste liquid.

[0037] The internal heating element 222 includes a motor 2221, a rotating shaft 2222, and heating rods 2223. The motor 2221 is fixedly installed at the top or bottom of the heating evaporator 2. A rotating shaft 2222, penetrating multiple processing chambers 21, is rotatably installed at the axis of the heating evaporator 2. The rotating shaft 2222 is fixedly connected to the output shaft of the motor 2221. Multiple heating rods 2223 are fixedly and vertically installed on the surface of the rotating shaft 2222. During the synchronous heating process of the external heating element 221 and the internal heating element 222, the internal heating element 222 rotates slowly via the motor 2221, allowing the heating rods 2223 to rotate slowly and heat the acidic waste liquid. This improves the uniformity of heating the acidic waste liquid, resulting in a uniform overall temperature rise and avoiding heating dead zones or uneven heating, thus improving the heating and evaporation effect and efficiency of the acidic waste liquid.

[0038] It should be noted that the heating rod 2223 can be powered by a 360° rotating conductive slip ring 2225, as is done in the prior art. Specifically, current is transmitted through the contact between a fixed brush 2224 and the rotating conductive slip ring 2225, thereby powering the heating rod 2223 and causing it to heat up. More specifically, a conductive slip ring 2225 is fixedly installed at the end of the rotating shaft 2222, and brush filaments of the brush 2224 are fixedly installed in the heating evaporator 2. As the rotating shaft 2222 rotates, the brush filaments rotate and contact the ring, transmitting current to the heating rod 2223 for heating.

[0039] It should be noted that the heating rod 2223 can be any structure or device in the prior art that can generate heat through electricity.

[0040] It should be noted that the conductive slip ring 2225 fixedly installed at the end of the rotating shaft 2222 and the brush 2224 fixedly installed in the heating evaporator 2 are both in a sealed state and are sealed with heat-insulating, high-temperature resistant and acid-resistant materials such as perfluoroether rubber, thereby ensuring that the conductive slip ring 2225 and the brush 2224 can work stably and are not affected by the high temperature and acidity inside the heating evaporator.

[0041] It should be noted that the external heating element 221 can employ any heating method available in the prior art, such as steam heating with pipelines, heat transfer oil heating with pipelines, or electric heating. In this embodiment, the external heating element 221 employs heat transfer oil heating with pipelines. Furthermore, each external heating element 221 outside the processing chamber 21 is supplied with heat transfer oil via an independent pipeline, thereby ensuring that the temperature of the external heating element 221 outside each processing chamber 21 is in a progressively increasing state. This facilitates stable and accurate temperature control of the external heating element 221, and is beneficial for stable and accurate heating and evaporation of the acidic waste liquid.

[0042] In addition, any other existing equipment or structure capable of supplying power during rotation can be used. Examples include wireless power supply via electromagnetic induction coupling, power supply via reciprocating rotation within ±180° combined with a cable chain that allows the cable to reciprocate within retractable links, or power supply via reciprocating rotation that facilitates cable winding and unwinding using a cable reel. Since power supply during rotation is a very mature technology, it will not be elaborated upon further here.

[0043] It is also important to note that the pipes and heat transfer oil are spirally wound around the outer wall of the processing chamber 21, and a jacket is fixedly installed on the outside of the pipes and heat transfer oil for insulation, thereby ensuring stable heating temperature. Furthermore, the pipes and heat transfer oil can also be embedded in the spiral installation within the wall of the processing chamber 21, thereby improving the heating effect.

[0044] The temperatures of the external heating element 221 and the internal heating element 222 increase along the flow direction of the acidic waste liquid. The increasing temperature of the internal heating element 222 and the external heating element 221 in the direction of smoke treatment can gradually evaporate substances with different boiling points in the acidic waste liquid, thereby facilitating subsequent collection and treatment of substances with different boiling points.

[0045] Multiple preheating jackets 5 are spaced apart, and the temperature of the multiple preheating jackets 5 increases progressively along the flow direction. The multiple preheating jackets 5 with progressively increasing temperatures can gradually preheat the acidic waste liquid, thereby saving energy costs and facilitating the preheating of the acidic waste liquid, thus improving the efficiency of subsequent heating and evaporation of the acidic waste liquid.

[0046] The preheating sleeve 5 is coaxially fixed with the first pipe 11. An electric heating wire is fixedly installed in the preheating sleeve 5 near the inner wall of the first pipe 11. The first pipe 11 is preheated by the electric heating wire after being energized, thereby preheating the acidic waste liquid in the first pipe 11 and facilitating the efficiency of subsequent heating and evaporation.

[0047] The pretreatment unit 1 includes a filter housing 12, an upper filter body 13, and a lower filter body 14. The upper filter body 13, arranged at an angle, is fixedly installed in the upper part of the filter housing 12. A drain port, communicating with the heating evaporator 2, is opened at the bottom of the filter housing 12. A barrel-shaped lower filter body 14 is fixedly installed at the drain port. It should be noted that the filter screen diameter of the lower filter body 14 is smaller than that of the upper filter screen, thus allowing the upper filter body 13 to perform preliminary filtration of the acid-containing waste liquid, while the lower filter body 14 performs fine filtration of the acid-containing waste liquid.

[0048] When the acidic waste liquid enters the pretreatment body 1, it is first filtered by the upper filter body 13. After the initial filtration, the acidic waste liquid comes into contact with the lower filter body 14 for secondary filtration and then enters the first flue pipe 11 of the drain outlet and enters the heating evaporator 2. Thus, the acidic waste liquid is filtered step by step through the pretreatment body 1, which helps to improve the filtration speed and filtration effect at the same time, and avoids the solid particles in the acidic waste liquid from being heated and evaporated, causing scaling or clogging of the pipes, which helps to improve the service life.

[0049] It should be noted that the barrel-shaped lower filter body 14 can improve filtration efficiency through its barrel structure. On the other hand, during the filtration process, particles are less likely to adhere to the vertical curved surface of the lower filter screen due to gravity, which makes it less likely to clog the lower filter body 14 and thus improves filtration efficiency and service life.

[0050] It should be noted that, in this embodiment, multiple processing chambers 21 and the post-processing body 4 can be connected in parallel with discharge pipes. Through the parallel pipes, after the acidic waste liquid enters the heating evaporator 2, it can directly enter the post-processing body 4 for subsequent treatment such as neutralization, precipitation, or crystal separation after heating and evaporation in any processing chamber 21. This facilitates improving the applicability of the device to different acidic waste liquids.

[0051] In the process of treating acidic waste liquid, the waste acid solution is pumped to the pretreatment body 1. When the acidic waste liquid enters the pretreatment body 1, it is first filtered by the upper filter body 13. After the initial filtration, the acidic waste liquid comes into contact with the lower filter body 14 for secondary filtration and enters the first drain pipe 11 into the heating evaporator 2. Thus, the acidic waste liquid is gradually filtered through the pretreatment body 1, which helps to improve the filtration speed and filtration effect at the same time, avoids the solid particles in the acidic waste liquid from being heated and evaporated, causing scaling or clogging of the pipes, and helps to improve the service life.

[0052] The filtered acidic waste liquid enters the heating evaporator 2 through the first pipe 11. The acidic waste liquid is preheated in the first pipe 11 by multiple preheating jackets 5 with increasing temperatures, thereby gradually increasing the temperature of the acidic waste liquid while saving energy costs, which facilitates the improvement of the efficiency of subsequent heating and evaporation. The acidic waste liquid first enters the uppermost processing chamber 21 of the cylinder 23 through the first pipe 11. The uppermost processing chamber 21 heats and evaporates the waste liquid at the lowest temperature, thereby evaporating the substances with the lowest boiling point. The vapor from the evaporation of the substances with the lowest boiling point is discharged from the exhaust port 25 in the uppermost processing chamber 21 and enters the condenser 3 for condensation and collection. The remaining acidic waste liquid enters the next layer through the connection port 26 for heating and evaporation again, until it enters the lowermost processing chamber 21 with the highest heating temperature. The lowermost processing chamber 21 heats and evaporates the substances with the highest boiling point in the acidic waste liquid. The vapor formed by the evaporation of the substances with the highest boiling point enters the condenser 3 through the exhaust port 25 of the processing chamber 21 for collection. The remaining concentrated liquid enters the post-processing body 4 through the connection port 26 of the lowermost processing chamber 21 for subsequent neutralization, precipitation or separation treatment. After the acidic waste liquid enters the treatment chamber 21, the external heating element 221 can heat the acidic waste liquid from the edge of the treatment chamber 21, and the internal heating element 222 can rotate and heat the acidic waste liquid from the center. Thus, the acidic waste liquid is heated synchronously from the outside and inside by the cooperation of the external heating element 221 and the internal heating element 222, which helps to improve the heating uniformity of the acidic waste liquid, and thus helps to improve the heating treatment effect and efficiency of the acidic waste liquid.

[0053] The steam generated by heating and evaporation enters the condenser 3 for collection, while the remaining concentrated liquid enters the post-treatment body 4 for subsequent neutralization or separation treatment, thereby completing the comprehensive treatment of acidic waste liquid through evaporation and recovery.

[0054] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A comprehensive acid recovery and treatment device, comprising a pretreatment body (1), a heating evaporator (2), a condenser (3), and a posttreatment body (4), wherein the pretreatment body (1), the heating evaporator (2), the condenser (3), and the posttreatment body (4) are connected in sequence, characterized in that: A preheating jacket (5) is fixedly installed between the pretreatment body (1) and the heating evaporator (2). The heating evaporator (2) is sequentially fixed with multiple processing chambers (21) with increasing temperature. Heating bodies (22) are installed on the axis and edge sides of the processing chambers (21). The multiple processing chambers (21) can gradually evaporate liquids with different boiling points by increasing temperature and input them into the condenser (3) for collection.

2. The integrated treatment apparatus according to claim 1, wherein: The heating evaporator (2) includes a cylinder (23), partitions (24), an exhaust port (25) and a connection port (26). Multiple partitions (24) are fixedly installed at intervals along the axis inside the cylinder (23) to form multiple processing chambers (21). An exhaust port (25) is fixedly installed on the upper part of the processing chamber (21), and a connection port is opened at the bottom of the processing chamber (21).

3. The integrated treatment plant of claim 2, wherein: The heating element (22) includes an external heating element (221) and an internal heating element (222). An external heating element (221) is fixedly installed on the outside of the processing chamber (21), and an internal heating element (222) that penetrates multiple processing chambers (21) is rotatably installed at the axis of the heating evaporator (2).

4. The integrated treatment plant of claim 3, wherein: The temperatures of the external heating element (221) and the internal heating element (222) increase along the flow processing direction.

5. The integrated treatment plant of claim 4, wherein: The preheating jackets (5) are arranged at intervals, and the temperature of the multiple preheating jackets (5) increases along the flow direction.

6. The integrated treatment plant of claim 5, wherein: The pretreatment body (1) includes a filter housing (12), an upper filter body (13) and a lower filter body (14). The upper filter body (13) is fixedly installed in the upper part of the filter housing (12) at an incline. The bottom of the filter housing (12) is provided with a drain port that communicates with the heating evaporator (2). The lower filter body (14) with a cylindrical structure is fixedly installed at the drain port.

7. The integrated treatment plant of claim 6, wherein: The condenser (3) is connected in parallel to the exhaust ports (25) in the processing chambers (21) via multiple connecting pipes.

8. The integrated treatment plant of claim 7, wherein: The internal heating element (222) includes a motor (2221), a rotating shaft (2222), and heating rods (2223). The motor (2221) is fixedly installed at the top or bottom of the heating evaporator (2). A rotating shaft (2222) that passes through multiple processing chambers (21) is rotatably installed at the center of the heating evaporator (2). The rotating shaft (2222) is fixedly connected to the output shaft of the motor (2221). Multiple heating rods (2223) are fixedly and vertically installed on the surface of the rotating shaft (2222). A conductive slip ring (2225) is fixedly installed at the end of the rotating shaft (2222). A brush (2224) is fixedly installed inside the cylinder (23).

Images