Steam condensing device for treating high-salt high-total-nitrogen degradation-resistant wastewater

Abstract

The invention discloses a steam condensing device for treating high-salt high-total-nitrogen degradation-resistant wastewater, and relates to the technical field of wastewater treatment.The steam condensing device comprises a steam treatment tank and a condenser, and the top of the steam treatment tank is connected with one side of the condenser through a gas inlet pipe; a supporting frame is fixedly installed on the periphery, close to the bottom, of the steam treatment tank, a pretreatment box is fixedly installed on one side, on the top of the supporting frame, of the steam treatment tank, a water inlet pipe is fixedly connected to the top of the pretreatment box, and the bottom of the pretreatment box is connected with one side of the steam treatment tank through a connecting pipe. By arranging the filter screen and the activated carbon screen, the wastewater can be pretreated before steam condensation of the wastewater, part of impurities in the wastewater are filtered, organic pollutants including refractory organic matters in the wastewater are adsorbed, part of ammonia nitrogen and organic nitrogen can be removed, the filter screen and the activated carbon screen can be conveniently mounted and dismounted, and the wastewater treatment efficiency is improved. Therefore, the use effect is improved, and the subsequent condensation treatment effect on the waste water steam is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, and in particular to a steam condensing device for treating high-salt, high-total-nitrogen, and difficult-to-degrade wastewater. Background Art

[0002] Wastewater treatment is a complex and important process. It refers to the use of physical, chemical and biological methods to treat wastewater to purify it, reduce pollution, and even recycle and reuse wastewater to make full use of water resources. This process is of great significance for preventing water pollution, protecting the ecological environment, saving water resources and preventing the outbreak of waterborne diseases.

[0003] Wastewater is mainly divided into two categories: domestic wastewater and industrial wastewater. Domestic wastewater comes from daily activities such as households, schools, and businesses, and mainly contains pollutants such as organic matter, bacteria, and pathogens. Industrial wastewater comes from various industrial production processes, such as electroplating, printing and dyeing, chemicals, etc. It contains a variety of pollutants such as heavy metals, chemicals, and organic matter. It is highly toxic and poses serious threats to the environment. The treatment of high-salt, high-total nitrogen, and difficult-to-degrade wastewater is a part of wastewater treatment. It is a complex and challenging task that requires the comprehensive use of multiple technologies and methods.

[0004] The existing wastewater treatment equipment has a relatively complicated process for treating high-salt, high-total-nitrogen, and difficult-to-degrade wastewater. High-salt, high-total-nitrogen, and difficult-to-degrade wastewater usually contains high concentrations of salt (such as sodium chloride, sulfate, etc.), high concentrations of total nitrogen (including ammonia nitrogen, nitrate nitrogen, organic nitrogen, etc.) and difficult-to-biodegrade organic matter. These components may affect each other during the steam condensation process, resulting in increased difficulty in treatment. Therefore, it is necessary to pretreat the wastewater before the wastewater steam is condensed to facilitate the subsequent condensation treatment of the steam. Summary of the invention

[0005] The object of the present invention is to provide a steam condensing device for treating high-salt, high-total nitrogen and difficult-to-degrade wastewater, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A steam condensation device for treating high-salt and high-total nitrogen difficult-to-degrade wastewater comprises a steam treatment tank and a condenser, wherein the top of the steam treatment tank is connected to one side of the condenser through an air inlet pipe; a support frame is fixedly installed on the periphery of the steam treatment tank near the bottom, a pretreatment box is fixedly installed on one side of the steam treatment tank on the top of the support frame, a water inlet pipe is fixedly connected to the top of the pretreatment box, the bottom of the pretreatment box is connected to one side of the steam treatment tank through a connecting pipe, an activated carbon net is arranged inside the pretreatment box, a mounting component for mounting the activated carbon net is arranged on the periphery of the activated carbon net, the mounting component extends to one end of the pretreatment box and is connected to a fixing plate, the fixing plate is tightly fitted with the surface of one end of the pretreatment box, a filter screen is clamped inside the pretreatment box on the top of the mounting component, limit plates are fitted on the top and bottom of the filter screen near both sides, each limit plate is fixedly connected to the inner wall of the pretreatment box, a connecting plate is fitted on one end of the pretreatment box on the top of the fixing plate, and the connecting plate is fixedly connected to the surface of one end of the filter screen.

[0008] The existing wastewater treatment equipment has a relatively complicated process for treating high-salt, high-total nitrogen and difficult-to-biodegrade wastewater. High-salt, high-total nitrogen and difficult-to-biodegrade wastewater usually contains high concentrations of salt, high concentrations of total nitrogen and difficult-to-biodegrade organic matter. These components may affect each other during the steam condensation process, resulting in increased difficulty in treatment. In this application, by installing a filter, the wastewater entering the pretreatment box can be filtered and treated to separate impurities from the wastewater. By installing an activated carbon net, the difficult-to-biodegrade organic matter, part of the ammonia nitrogen and organic nitrogen in the wastewater can be adsorbed, and the filter can be quickly disassembled by pulling the connecting plate to one end. By inserting the filter between the limit plate and the limit plate, the filter can be installed and fixed, thereby facilitating the cleaning or replacement of the filter and improving the use effect of the filter. By pulling the fixing plate to one end, the activated carbon net can be taken out. By setting the installation component, the activated carbon net can be quickly disassembled and installed, thereby facilitating the cleaning or replacement of the activated carbon net, improving the use effect of the activated carbon net, and further improving the effect of subsequent condensation treatment of wastewater vapor.

[0009] A further improvement of the technical solution of the present invention is that: the installation component includes a support plate, the surfaces on both sides and the other end of the support plate are in contact with the inner wall of the pretreatment box, and the inner wall of the support plate is engaged with the outer surface of the activated carbon net, and card plates are arranged on both sides of the top and bottom of the support plate, each card plate is fixedly connected to the inner wall of the pretreatment box, and a pressure plate is arranged on the top of the support plate, which is tightly fitted with the top surface of the activated carbon net, and the top surface of the pressure plate is tightly fitted with the bottom surface of each card plate on the top of the support plate, a plurality of card blocks are fixedly installed on the bottom of the pressure plate outside the activated carbon net, and a plurality of card slots are opened on the top of the support plate outside the activated carbon net, and each card block is respectively engaged with the inside of each card slot.

[0010] The above-mentioned technical solution is adopted. In this solution, by installing the card block into the card slot of the support plate, the position of the pressure plate on the top of the support plate can be limited, thereby realizing the installation and fixation of the activated carbon net. After the support plate is moved to the inside of the pretreatment box, the pressure plate and the support plate can be limited by installing a number of card plates to prevent the two from separating and affecting the use of the activated carbon net.

[0011] A further improvement of the technical solution of the present invention is that: the top of each card slot is provided with an opening larger than the size of the top surface of each card block.

[0012] The above technical solution is adopted, in which an opening larger than the top surface size of the card block is opened at the top of the slot to facilitate the card block to align with the slot, thereby facilitating the movement of the pressure plate to a state of being in contact with the support plate, thereby further speeding up the installation of the activated carbon net.

[0013] A further improvement of the technical solution of the present invention is that a plurality of mounting rings are fixedly installed on one end of the pretreatment box on the top of the fixed plate, a plug is plugged into the top of each mounting ring, each plug passes through the bottom of each mounting ring and fits with the surface of one end of the fixed plate, and a first sealing frame is attached to the other end of the inside of the fixed plate, and the first sealing frame fits tightly with the surface of one end of the pretreatment box.

[0014] The above-mentioned technical solution is adopted. In this solution, during the use of the activated carbon net, there is a risk of the activated carbon net sliding and falling off to one end. In the present application, one end of the fixed plate can be limited by the mounting ring and the plug, thereby preventing the activated carbon net from detaching from the interior of the pretreatment box, thereby improving the stability of the activated carbon net installation.

[0015] A further improvement of the technical solution of the present invention is that: a plurality of first convex strips are provided on the surface of the other end of the first sealing frame, and each of the first convex strips is tightly fitted with the surface of one end of the pretreatment box.

[0016] By adopting the above technical solution, in this solution, the contact area between the fixed plate and the surface of one end of the pretreatment box can be increased by installing the first sealing frame, thereby preventing wastewater from leaking from the contact surface between the fixed plate and the pretreatment box; the contact area between the first sealing frame and the surface of the pretreatment box can be increased by installing the first convex strip, further improving the sealing effect of the first sealing frame.

[0017] A further improvement of the technical solution of the present invention is that a pull plate is fixedly installed at one end of the fixed plate, and the pull plate is located at the bottom of each plug.

[0018] The above technical solution is adopted. In this solution, the contact area between the operator's hand and the fixed plate can be enlarged by installing a pulling plate, so that the fixed plate can be pulled toward one end to disassemble the activated carbon net.

[0019] A further improvement of the technical solution of the present invention is that a plurality of connecting rings are fixedly installed on one end of the pretreatment box on the top of the connecting plate, a fixing bolt is inserted into the top of each connecting ring, each fixing bolt passes through the bottom of each connecting ring and fits with the surface of one end of the connecting plate, and a second sealing frame is attached to the other end of the inside of the connecting plate, and the second sealing frame fits tightly with the surface of one end of the pretreatment box.

[0020] The above-mentioned technical solution is adopted. In this solution, during the use of the filter, there is a risk that the filter will slide and fall off to one end. In the present application, one end of the connecting plate can be limited by installing a connecting ring and a fixing bolt, thereby preventing the filter from detaching from the interior of the pretreatment box, thereby improving the stability of the filter installation.

[0021] A further improvement of the technical solution of the present invention is that a plurality of second convex strips are provided on the other end surface of the second sealing frame, and each second convex strip is tightly fitted with the surface of one end of the pretreatment box.

[0022] By adopting the above technical solution, in this solution, the contact area between the connecting plate and the surface of one end of the pretreatment box can be increased by installing the second sealing frame, thereby preventing wastewater from leaking from the contact surface between the connecting plate and the pretreatment box; the contact area between the second sealing frame and the surface of the pretreatment box can be increased by installing the second convex strip, thereby further improving the sealing effect of the second sealing frame.

[0023] A further improvement of the technical solution of the present invention is that a handle is fixedly installed at one end of the connecting plate, and the handle is located at the bottom of each fixing bolt.

[0024] The above technical solution is adopted. In this solution, the contact area between the operator's hand and the connecting plate can be enlarged by installing a handle, so that the connecting plate can be pulled toward one end to disassemble the filter.

[0025] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0026] 1. The present invention provides a steam condensing device for treating high-salt, high-total nitrogen and difficult-to-degrade wastewater. After the wastewater is supplied into a pretreatment box, the impurities in the wastewater can be filtered out by a filter, and the difficult-to-degrade organic matter, part of the ammonia nitrogen and organic nitrogen in the wastewater can be adsorbed by an activated carbon net, so as to facilitate the subsequent condensation treatment of the wastewater vapor. The filter and the activated carbon net can be quickly disassembled and processed to facilitate their cleaning or replacement, thereby improving the use effect of the filter and the activated carbon net, and further improving the effect of the subsequent condensation treatment of the wastewater vapor.

[0027] 2. The present invention provides a steam condensation device for treating high-salt, high-total nitrogen and difficult-to-degrade wastewater. By opening an opening larger than the top surface size of the card block at the top of the card slot, the card block can be easily aligned with the card slot, further improving the efficiency of installing the activated carbon net.

[0028] 3. The present invention provides a steam condensation device for treating high-salt, high-total nitrogen and difficult-to-degrade wastewater. The installation ring and the plug can prevent the activated carbon net from detaching from the inside of the pretreatment box, thereby improving the stability of the installation of the activated carbon net; and by installing a first sealing frame and increasing the contact area between the fixed plate and the surface of one end of the pretreatment box, it can prevent wastewater from leaking from the contact surface between the fixed plate and the pretreatment box.

[0029] 4. The present invention provides a steam condensation device for treating high-salt, high-total nitrogen and difficult-to-degrade wastewater. By installing a connecting ring and a fixing bolt, the filter can be prevented from detaching from the interior of the pretreatment box, thereby improving the stability of the filter installation; and by installing a second sealing frame and a second convex strip, the contact area between the connecting plate and the surface of one end of the pretreatment box can be increased, thereby effectively preventing wastewater from leaking from the contact surface between the connecting plate and the pretreatment box. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Figure 1 A perspective view of the present invention;

[0032] Figure 2 It is a schematic diagram of the partial structure of the cross section of the pretreatment box of the present invention;

[0033] Figure 3 It is a schematic diagram of a partial explosion structure of a fixed plate section of the present invention;

[0034] Figure 4 It is a schematic diagram of a partial explosion structure of a cross section of a connecting plate of the present invention;

[0035] Figure 5 It is a schematic diagram of a partial explosion structure of a cross section of a support plate of the present invention;

[0036] Figure 6 It is a schematic diagram of the local structure of the pretreatment box of the present invention;

[0037] Figure 7 It is a schematic diagram of the partial structure of the first sealing frame of the present invention from a second viewing angle;

[0038] Figure 8 It is a schematic diagram of the partial structure of the second sealing frame of the present invention at a second viewing angle.

[0039] In the figure: 1. steam treatment tank; 2. pretreatment box; 3. fixing plate; 4. connecting plate; 5. water inlet pipe; 6. connecting pipe; 7. activated carbon net; 8. filter screen; 9. condenser; 10. air inlet pipe; 11. support frame; 12. installation parts; 1201. support plate; 1202. pressure plate; 1203. block; 1204. slot; 14. clamping plate; 15. limit plate; 16. installation ring; 17. plug; 18. connecting ring; 19. fixing plug; 20. pull plate; 21. handle; 22. first sealing frame; 23. second sealing frame; 26. first convex strip; 27. second convex strip. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with embodiments:

[0041] Example 1

[0042] like Figure 1 , Figure 2 and Figure 5 As shown, the present invention provides a steam condensation device for treating high-salt and high-total nitrogen refractory wastewater, comprising a steam treatment tank 1 and a condenser 9, wherein the top of the steam treatment tank 1 is connected to one side of the condenser 9 via an air inlet pipe 10; a support frame 11 is fixedly installed on the periphery of the steam treatment tank 1 near the bottom, a pretreatment box 2 is fixedly installed on one side of the steam treatment tank 1 at the top of the support frame 11, a water inlet pipe 5 is fixedly connected to the top of the pretreatment box 2, the bottom of the pretreatment box 2 is connected to one side of the steam treatment tank 1 via a connecting pipe 6, an activated carbon net 7 is arranged inside the pretreatment box 2, and the steam treatment tank 1 is connected to the bottom of the steam treatment tank 1 via a connecting pipe 6. The periphery of the activated carbon net 7 is provided with a mounting component 12 for installing the activated carbon net 7, the mounting component 12 extends to one end of the pretreatment box 2 and is connected to a fixing plate 3, the fixing plate 3 is tightly fitted with the surface of one end of the pretreatment box 2, a filter screen 8 is clamped inside the pretreatment box 2 at the top of the mounting component 12, and the filter screen 8 is fitted with limit plates 15 near the top and bottom of both sides, each limit plate 15 is fixedly connected to the inner wall of the pretreatment box 2, and a connecting plate 4 is fitted at one end of the pretreatment box 2 at the top of the fixing plate 3, and the connecting plate 4 is fixedly connected to the surface of one end of the filter screen 8.

[0043] In this embodiment, the existing wastewater treatment equipment is relatively complicated for treating high-salt, high-total nitrogen and difficult-to-biodegrade wastewater. High-salt, high-total nitrogen and difficult-to-biodegrade wastewater usually contains high concentrations of salt, high concentrations of total nitrogen and difficult-to-biodegrade organic matter. These components may affect each other during the steam condensation process, resulting in increased difficulty in treatment. In this application, by installing a filter screen 8, the wastewater entering the pretreatment box 2 can be filtered and treated to separate impurities from the wastewater. Then, by installing an activated carbon net 7, the difficult-to-biodegrade organic matter, part of the ammonia nitrogen and organic nitrogen in the wastewater can be adsorbed, and by The filter 8 can be quickly disassembled by pulling the connecting plate 4 at one end. The filter 8 can be installed and fixed by inserting the filter 8 between the limiting plates 15 and the limiting plates 15, so as to facilitate the cleaning or replacement of the filter 8 and improve the use effect of the filter 8. The activated carbon net 7 can be taken out by pulling the fixing plate 3 to one end. The activated carbon net 7 can be quickly disassembled and installed by setting the installation component 12, so as to facilitate the cleaning or replacement of the activated carbon net 7, improve the use effect of the activated carbon net 7, and further improve the effect of the subsequent condensation treatment of the wastewater vapor.

[0044] Example 2

[0045] like Figure 2 , Figure 3 and Figure 5 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the mounting component 12 includes a support plate 1201, the surfaces of the two sides and the other end of the support plate 1201 are in contact with the inner wall of the pretreatment box 2, and the inner wall of the support plate 1201 is engaged with the outer surface of the activated carbon net 7, and the top and bottom sides of the support plate 1201 are both provided with a card plate 14, each card plate 14 is fixedly connected to the inner wall of the pretreatment box 2, and the top of the support plate 1201 is in contact with a pressing plate 1202, and the pressing plate 120 2 is closely fitted with the top surface of the activated carbon net 7, and the top surface of the pressing plate 1202 is closely fitted with the bottom surface of each card plate 14 at the top of the supporting plate 1201, a plurality of card blocks 1203 are fixedly installed at the bottom of the pressing plate 1202 outside the activated carbon net 7, a plurality of card slots 1204 are opened at the top of the supporting plate 1201 outside the activated carbon net 7, each card block 1203 is respectively engaged with the inside of each card slot 1204, and the top of each card slot 1204 is opened with an opening larger than the top surface size of each card block 1203.

[0046] In this embodiment, by installing the card block 1203 and inserting it into the card slot 1204 of the support plate 1201, the position of the pressing plate 1202 on the top of the support plate 1201 can be limited, thereby realizing the installation and fixation of the activated carbon net 7. After the support plate 1201 is moved to the interior of the pretreatment box 2, the pressing plate 1202 and the support plate 1201 can be limited by installing a plurality of card plates 14 to prevent the two from separating and affecting the use of the activated carbon net 7. By opening an opening larger than the top surface of the card block 1203 at the top of the card slot 1204, it is convenient to align the card block 1203 with the card slot 1204, thereby facilitating the movement of the pressing plate 1202 to a state of being in contact with the support plate 1201, thereby further speeding up the installation of the activated carbon net 7.

[0047] Example 3

[0048] like Figure 2 , Figure 3 and Figure 7 As shown, on the basis of Example 2, the present invention provides a technical solution: preferably, a plurality of mounting rings 16 are fixedly installed on one end of the pretreatment box 2 on the top of the fixed plate 3, and a plug 17 is inserted on the top of each mounting ring 16, and each plug 17 passes through the bottom of each mounting ring 16 and fits with the surface of one end of the fixed plate 3, and a first sealing frame 22 is attached to the other end of the inside of the fixed plate 3, and the first sealing frame 22 is tightly fitted with the surface of one end of the pretreatment box 2. A plurality of first convex strips 26 are provided on the surface of the other end of the first sealing frame 22, and each first convex strip 26 is tightly fitted with the surface of one end of the pretreatment box 2, and a pull plate 20 is fixedly installed on one end of the fixed plate 3, and the pull plate 20 is located at the bottom of each plug 17.

[0049] In the present embodiment, during the use of the activated carbon net 7, there is a risk that the activated carbon net 7 may slide and fall off to one end. In the present application, one end of the fixed plate 3 can be limited by installing the ring 16 and the plug 17, thereby preventing the activated carbon net 7 from detaching from the interior of the pretreatment box 2, thereby improving the stability of the installation of the activated carbon net 7; and by installing the first sealing frame 22, the contact area between the fixed plate 3 and the surface of one end of the pretreatment box 2 can be increased, thereby preventing wastewater from leaking from the contact surface between the fixed plate 3 and the pretreatment box 2; by installing the first convex strip 26, the contact area between the first sealing frame 22 and the surface of the pretreatment box 2 can be increased, further improving the sealing effect of the first sealing frame 22; by installing the pull plate 20, the contact area between the operator's hand and the fixed plate 3 can be expanded, so as to facilitate pulling the fixed plate 3 to one end to disassemble the activated carbon net 7.

[0050] Example 4

[0051] like Figure 2 , Figure 4 and Figure 8As shown, on the basis of Example 3, the present invention provides a technical solution: preferably, a plurality of connecting rings 18 are fixedly installed on one end of the pretreatment box 2 on the top of the connecting plate 4, and a fixing bolt 19 is inserted on the top of each connecting ring 18, and each fixing bolt 19 passes through the bottom of each connecting ring 18 and fits with the surface of one end of the connecting plate 4, and a second sealing frame 23 is attached to the other end of the inside of the connecting plate 4, and the second sealing frame 23 is tightly fitted with the surface of one end of the pretreatment box 2. A plurality of second convex strips 27 are provided on the surface of the other end of the second sealing frame 23, and each second convex strip 27 is tightly fitted with the surface of one end of the pretreatment box 2, and a handle bar 21 is fixedly installed on one end of the connecting plate 4, and the handle bar 21 is located at the bottom of each fixing bolt 19.

[0052] In the present embodiment, during the use of the filter 8, there is a risk that the filter 8 may slide and fall off toward one end. In the present application, the connecting ring 18 and the fixing bolt 19 are installed to limit one end of the connecting plate 4, thereby preventing the filter 8 from detaching from the interior of the pretreatment box 2, thereby improving the stability of the installation of the filter 8; and the second sealing frame 23 is installed to increase the contact area between the connecting plate 4 and the surface of one end of the pretreatment box 2, thereby preventing wastewater from leaking from the contact surface between the connecting plate 4 and the pretreatment box 2; the second convex strip 27 is installed to increase the contact area between the second sealing frame 23 and the surface of the pretreatment box 2, thereby further improving the sealing effect of the second sealing frame 23; and the handle 21 is installed to expand the contact area between the operator's hand and the connecting plate 4, so as to facilitate pulling the connecting plate 4 toward one end to disassemble the filter 8.

[0053] The working principle of the steam condensation device for treating high-salt, high-total-nitrogen, difficult-to-degrade wastewater is described in detail below.

[0054] like Figure 1-Figure 8 As shown, the operator can connect the water inlet pipe 5 with the external water supply equipment to supply the wastewater into the interior of the pretreatment box 2, first use the filter screen 8 to filter the impurities of the wastewater, the water after preliminary filtration flows to the bottom, and then use the activated carbon net 7 to adsorb the difficult-to-degrade organic matter, part of the ammonia nitrogen and organic nitrogen in the wastewater. After the pretreatment is completed, the wastewater can enter the interior of the steam treatment tank 1 through the connecting pipe 6, and the wastewater is converted into steam. The steam then enters the interior of the condenser 9 through the air inlet pipe 10, and finally the condenser 9 is used to condense the steam. After the treatment is completed, the operator can pull the fixing bolt 19 to the top, and then pull the second convex strip 27 to one end to disassemble the filter screen 8, so as to clean or replace the filter screen 8. Then, if the activated carbon net 7 needs to be replaced or cleaned, the operator can pull the plug 17 to the top, and then pull the pull plate 20 to one end to remove the mounting component 12 from the interior of the pretreatment box 2, and then move the pressing plate 1202 to the top to remove the activated carbon net 7 for replacement or cleaning.

[0055] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A steam condensation device for treating high-salt, high-total-nitrogen, and difficult-to-degrade wastewater, comprising a steam treatment tank (1) and a condenser (9), wherein the top of the steam treatment tank (1) is connected to one side of the condenser (9) via an air inlet pipe (10); characterized in that: A support frame (11) is fixedly installed on the periphery of the steam treatment tank (1) near the bottom, a pretreatment box (2) is fixedly installed on one side of the steam treatment tank (1) at the top of the support frame (11), a water inlet pipe (5) is fixedly connected to the top of the pretreatment box (2), the bottom of the pretreatment box (2) is connected to one side of the steam treatment tank (1) via a connecting pipe (6), an activated carbon net (7) is arranged inside the pretreatment box (2), and a mounting component (12) for mounting the activated carbon net (7) is arranged on the periphery of the activated carbon net (7), and the mounting component (12) extends to One end of the pretreatment box (2) is connected to a fixing plate (3), and the fixing plate (3) is tightly fitted with the surface of one end of the pretreatment box (2). A filter screen (8) is clamped inside the pretreatment box (2) at the top of the mounting component (12). The filter screen (8) is fitted with limit plates (15) near the top and bottom of both sides. Each limit plate (15) is fixedly connected to the inner wall of the pretreatment box (2). A connecting plate (4) is fitted at one end of the pretreatment box (2) at the top of the fixing plate (3), and the connecting plate (4) is fixedly connected to the surface of one end of the filter screen (8).

2. A steam condensing device for treating high-salt, high-total-nitrogen, difficult-to-degrade wastewater according to claim 1, characterized in that: The mounting component (12) comprises a support plate (1201), the surfaces of the two sides and the other end of the support plate (1201) are in contact with the inner wall of the pretreatment box (2), and the inner wall of the support plate (1201) is mutually engaged with the outer surface of the activated carbon net (7), and the top and bottom sides of the support plate (1201) are both provided with a clamping plate (14), each of the clamping plates (14) is fixedly connected to the inner wall of the pretreatment box (2), and the top of the support plate (1201) is in contact with a pressing plate (1202), and the pressing plate (1202) is 202) is tightly fitted with the top surface of the activated carbon net (7), and the top surface of the pressing plate (1202) is tightly fitted with the bottom surface of each of the card plates (14) on the top of the support plate (1201), a plurality of card blocks (1203) are fixedly installed at the bottom of the pressing plate (1202) outside the activated carbon net (7), and a plurality of card slots (1204) are opened on the top of the support plate (1201) outside the activated carbon net (7), and each of the card blocks (1203) is respectively engaged with the inside of each of the card slots (1204).

3. A steam condensing device for treating high-salt and high-total-nitrogen refractory wastewater according to claim 2, characterized in that: The top of each of the card slots (1204) is provided with an opening that is larger than the top surface of each of the card blocks (1203).

4. A steam condensing device for treating high-salt and high-total-nitrogen refractory wastewater according to claim 1, characterized in that: A plurality of mounting rings (16) are fixedly mounted on one end of the pretreatment box (2) on the top of the fixing plate (3), and a plug (17) is plugged into the top of each mounting ring (16). Each plug (17) passes through the bottom of each mounting ring (16) and fits with the surface of one end of the fixing plate (3). A first sealing frame (22) is attached to the other end of the fixing plate (3), and the first sealing frame (22) fits tightly with the surface of one end of the pretreatment box (2).

5. A steam condensing device for treating high-salt, high-total-nitrogen, difficult-to-degrade wastewater according to claim 4, characterized in that: A plurality of first convex strips (26) are provided on the other end surface of the first sealing frame (22), and each of the first convex strips (26) is tightly fitted with the surface of one end of the pretreatment box (2).

6. A steam condensing device for treating high-salt, high-total-nitrogen, difficult-to-degrade wastewater according to claim 5, characterized in that: A pull plate (20) is fixedly mounted on one end of the fixing plate (3), and the pull plate (20) is located at the bottom of each of the plugs (17).

7. The steam condensing device for treating high-salt, high-total-nitrogen, and difficult-to-degrade wastewater according to claim 1, characterized in that: A plurality of connecting rings (18) are fixedly mounted on one end of the pretreatment box (2) at the top of the connecting plate (4), and a fixing bolt (19) is inserted at the top of each connecting ring (18). Each fixing bolt (19) passes through the bottom of each connecting ring (18) and fits with the surface of one end of the connecting plate (4). A second sealing frame (23) is attached to the other end of the connecting plate (4), and the second sealing frame (23) fits tightly with the surface of one end of the pretreatment box (2).

8. A steam condensing device for treating high-salt, high-total-nitrogen, difficult-to-degrade wastewater according to claim 7, characterized in that: A plurality of second convex strips (27) are provided on the other end surface of the second sealing frame (23), and each of the second convex strips (27) is tightly fitted with the surface of one end of the pretreatment box (2).

9. A steam condensing device for treating high-salt, high-total-nitrogen, difficult-to-degrade wastewater according to claim 8, characterized in that: A handle bar (21) is fixedly mounted on one end of the connecting plate (4), and the handle bar (21) is located at the bottom of each fixing bolt (19).

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