Precipitation separation and waste gas treatment device for papermaking wastewater

Abstract

The invention relates to the technical field of environmental protection equipment, and discloses a papermaking wastewater precipitation separation and waste gas treatment device which comprises a heating assembly, the heating assembly comprises a supporting frame, a reaction kettle assembly is installed at the top of the supporting frame, a desilting assembly is installed on the inner side of the reaction kettle assembly, and a scraping wheel is installed at the bottom end of the desilting assembly; a motorized shaft is installed at the top end of the desilting assembly, a sealing shell is installed at the top of the reaction kettle assembly, a filter is installed at the top end of the sealing shell, a rotating brush assembly is installed on the side face of the motorized shaft, and a condensate water recycling assembly is installed on the inner side of the sealing shell; the desilting assembly discharges deposited sludge under cooperation of the reaction kettle assembly and a scraping wheel, the condensate water recycling assembly reduces blockage of a filter, the rotating brush assembly is matched with a motor shaft to remove attachments of the filter, the reaction kettle assembly comprises a heating crucible, an elastic piece is installed on the inner side of the heating crucible, and the elastic piece is connected with the motor shaft. And the problem of energy consumption increase is avoided.

Description

A papermaking wastewater sedimentation separation and waste gas treatment device Technical Field

[0001] This invention relates to the field of environmental protection equipment technology, and more specifically to a papermaking wastewater sedimentation separation and waste gas treatment device. Background Technology

[0002] During the washing, peeling, and crushing processes of papermaking raw materials, washing wastewater containing raw material debris and soluble organic matter is generated. This type of wastewater has a high suspended solids content. Furthermore, the pulping process requires the raw materials to be cooked with high-temperature strong alkali and strong acid solutions to separate fibers and lignin. The black liquor discharged after cooking is the main source of pulping wastewater, containing large amounts of lignin, hemicellulose, residual alkali, pigments, etc., with extremely high organic matter concentrations, requiring wastewater treatment equipment. The cooking process also releases sulfur-containing odorous gases such as hydrogen sulfide, methanethiol, and dimethyl sulfide. These gases originate from the decomposition of sulfur-containing organic matter in the raw materials and require waste gas treatment devices to prevent their discharge and environmental pollution. However, in actual use, existing wastewater and waste gas treatment devices often result in sludge with high fiber and moisture content, leading to sludge accumulation and compaction at the bottom of the tank, increasing equipment operating resistance and energy consumption. Furthermore, papermaking waste gas contains a large amount of paper dust, fiber fragments, and filler dust, which can easily clog equipment. Therefore, we propose a papermaking wastewater sedimentation separation and waste gas treatment device to solve the above problems. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a papermaking wastewater sedimentation separation and waste gas treatment device to solve the problems existing in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a papermaking wastewater sedimentation separation and waste gas treatment device, comprising a heating component, the heating component comprising a support frame, a reaction vessel component mounted on the top of the support frame, a sludge removal component mounted on the inner side of the reaction vessel component, a scraper mounted on the bottom end of the sludge removal component, a movable shaft mounted on the top end of the sludge removal component, a sealed outer shell mounted on the top of the reaction vessel component, a filter mounted on the top end of the sealed outer shell, a rotating brush component mounted on the side of the movable shaft, and a condensate recovery component mounted on the inner side of the sealed outer shell;

[0005] The sludge removal component, in cooperation with the reactor component and the scraper, discharges the accumulated sludge; the condensate recovery component reduces filter clogging; and the rotating brush component, in conjunction with the motor shaft, removes the deposits from the filter.

[0006] The reactor assembly includes a heating crucible, and a spring is installed on the inner side of the heating crucible. The tangent angle between the spring and the connection point of the inner side of the heating crucible is 30-45°. Adjusting the angle between the spring and the heating crucible can reduce energy consumption or promote the discharge of sludge from the sludge removal assembly.

[0007] Furthermore, an evaporation component is fixedly connected to the top of the heating component, and an exhaust gas filtration component is fixedly connected to the top of the evaporation component.

[0008] Furthermore, an electric heating block is fixedly connected to the inner side of the support frame, and two conductive wires are electrically connected to both sides of the electric heating block. One end of each of the four conductive wires is electrically connected to the inner wall of the support frame. A sealing plate is fixedly fitted to the top of the support frame, and a placement hole is provided on the top of the sealing plate. The placement hole exposes the heating end of the electric heating block. A water storage tank is fixedly connected to one side of the support frame.

[0009] Furthermore, the evaporation assembly includes a reaction vessel assembly, a sludge removal assembly is rotatably connected to the inner side of the bottom of the reaction vessel assembly, a scraper is fixedly sleeved on the side of the bottom end of the sludge removal assembly, and the scraper is located inside the bottom end of the reaction vessel assembly, and several spring pieces are fixedly connected to the inner side of the heating crucible.

[0010] Furthermore, the dredging component includes a hollow shaft, with a scraper fixedly sleeved at the bottom end of the hollow shaft. The side of the hollow shaft is provided with several sludge inlet grooves, and several scrapers are fixedly connected to the side of the hollow shaft. A cavity plate is fixedly connected to one side of each scraper, and the cavity formed by the scraper and the cavity plate communicates with the sludge inlet grooves. The side of the hollow shaft is provided with a sludge discharge hole, which is located above the sludge inlet grooves.

[0011] Furthermore, the exhaust gas filtration assembly includes a sealed housing, a top cover is fixedly connected to the top of the sealed housing, and pillars are fixedly connected to the four bottom corners of the sealed housing, with the bottom ends of the four pillars respectively fixedly connected to the top four corners of the sealing plate.

[0012] Furthermore, a filter sheet is fixedly fitted in the middle of the bottom of the sealed housing, a motor is fixedly connected to the top of the top cover, an air outlet pipe is fixedly connected to one side of the top cover, and a sewage discharge pipe is fixedly connected to the bottom of the front of the sealed housing.

[0013] Furthermore, the drive end of the motor is fixedly connected to a motor shaft, a filter is fixedly sleeved on the inner side of the top of the sealed housing, a rotating brush assembly is fixedly sleeved on the side of the motor shaft and the rotating brush assembly is located at the bottom of the filter, the bottom end of the motor shaft is fixedly connected to the top of the hollow shaft, the drain hole of the hollow shaft is fixedly connected to the port of the drain pipe, and a condensate recovery assembly is fixedly sleeved on the inner side of the sealed housing.

[0014] Furthermore, the rotating brush assembly includes a connector, on the side of which three fan blades are fixedly connected, and on the top of each of the three fan blades are fixedly connected a brush strip. The connector is fixedly sleeved on the side of the motor shaft.

[0015] Furthermore, the condensate recovery assembly includes four condenser tubes, each with an air inlet groove on its side. An isolation plate is fixedly connected to the top of each condenser tube, and the isolation plate is fixedly fitted inside the sealed outer shell. Two return pipes are fixedly connected to the bottom of each condenser tube, with both ends of the return pipes fixedly fitted onto the inner wall of the sealed outer shell. One end of each of the two return pipes is fixedly connected to a manifold pipe, and the bottom end of the manifold pipe is fixedly connected to the top of the water storage tank.

[0016] The technical effects and advantages of this invention are as follows:

[0017] 1. The papermaking wastewater is heated and steamed in a heated crucible, causing the wastewater to vaporize and form water vapor. Simultaneously, a motor drives a hollow shaft to rotate, which in turn drives the sludge removal components and scrapers. The rotating scrapers continuously stir the wastewater, accelerating its evaporation. After the water in the wastewater evaporates, the sludge settles to the bottom and dries and clumps due to the high-temperature heating. At this point, the rotating scrapers scoop up and crush the dried sludge clumps. The rotation of the scrapers also lifts the sludge powder clumps. The sewage pipe is connected to a negative pressure system, which draws the sludge powder clumps into the hollow plate and transfers them to the hollow shaft, finally discharging them from the sewage pipe. This process avoids the problems of high fiber content and high water content in the settled sludge, which can cause sludge to accumulate and clump at the bottom of the tank, increasing equipment operating resistance and leading to increased energy consumption.

[0018] 2. The papermaking wastewater is vaporized using an evaporation unit and mixed with the exhaust gas. Part of the vapor is liquefied through a condenser, allowing some of the paper dust and particles in the exhaust gas to be discharged into a condensate recovery unit along with the condensate, eventually flowing into a storage tank. The remaining exhaust gas is filtered and finally discharged as clean air through an outlet pipe. A motor drives a rotating shaft, which in turn drives a brush assembly. The brush strips rotate to sweep away the deposits at the bottom of the filter, preventing blockage. This process solves the problem of papermaking exhaust gas containing large amounts of paper dust, fiber fragments, and filler dust, which easily clog the equipment. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a schematic diagram of the heating component structure of the present invention;

[0021] Figure 3 is a schematic diagram of the internal structure of the heating component of the present invention;

[0022] Figure 4 is a schematic cross-sectional view of the evaporation assembly of the present invention;

[0023] Figure 5 is a schematic diagram of the reactor assembly structure of the present invention;

[0024] Figure 6 is a schematic diagram of the dredging component structure of the present invention;

[0025] Figure 7 is a schematic diagram of the exhaust gas filtration component of the present invention;

[0026] Figure 8 is a schematic diagram of the front cross-sectional structure of the exhaust gas filtration component of the present invention;

[0027] Figure 9 is a schematic diagram of the rotating brush assembly structure of the present invention;

[0028] Figure 10 is a schematic diagram of the condensate recovery component of the present invention.

[0029] The attached figures are labeled as follows: 1. Heating assembly; 101. Support frame; 102. Heating block; 103. Water tank; 2. Evaporation assembly; 201. Reactor assembly; 2011. Heating crucible; 2012. Spring; 202. Sludge removal assembly; 2021. Hollow shaft; 2022. Scraper; 2023. Cavity plate; 203. Scraper wheel; 3. Waste gas filtration assembly; 301. Sealed outer shell; 302. Top cover; 303. Filter plate; 304. Outlet pipe; 305. Motor shaft; 306. Filter; 307. Rotary brush assembly; 3071. Connector; 3072. Fan blade; 3073. Brush strip; 308. Condensate recovery assembly; 3081. Condenser pipe; 3082. Return pipe. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The papermaking wastewater sedimentation separation and waste gas treatment device involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Referring to Figure 1, the present invention provides a papermaking wastewater sedimentation separation and waste gas treatment device, including a heating component 1, an evaporation component 2 fixedly connected to the top of the heating component 1, and a waste gas filtration component 3 fixedly connected to the top of the evaporation component 2.

[0032] In this embodiment, it is necessary to further explain that the heating component 1 and the evaporation component 2 avoid the problem that the sludge has a high fiber content and high water content, which causes the sludge to accumulate and harden at the bottom of the pool, increasing the operating resistance of the equipment and leading to increased energy consumption. The evaporation component 2 and the exhaust gas filtration component 3 solve the problem that the papermaking exhaust gas contains a large amount of paper dust, fiber fragments, and filler dust, which easily clogs the equipment. The specific structure and working principle of the above components will be explained in detail later.

[0033] Referring to Figures 2 and 3, an electric heating block 102 is fixedly connected to the inner side of the support frame 101. Two wire harnesses are electrically connected to both sides of the electric heating block 102, and one end of each of the four wire harnesses is electrically connected to the inner wall of the support frame 101. A sealing plate is fixedly fitted to the top of the support frame 101, and a placement hole is provided on the top of the sealing plate. The placement hole exposes the heating end of the electric heating block 102. A water storage tank 103 is fixedly connected to one side of the support frame 101.

[0034] Referring to Figure 4, the evaporation assembly 2 includes a reactor assembly 201. A sludge removal assembly 202 is rotatably connected to the inner side of the bottom of the reactor assembly 201. A scraper 203 is fixedly sleeved on the side of the bottom end of the sludge removal assembly 202, and the scraper 203 is located at the bottom inside the reactor assembly 201.

[0035] In this embodiment, it should be specifically noted that the scraper 203 is formed by two inclined plates that are fixedly connected in a cross shape, and the angle between the two inclined plates and the bottom of the reactor assembly 201 is 30-60°, preferably 45°.

[0036] Referring to Figure 5, the reactor assembly 201 includes a heating crucible 2011, and a plurality of spring pieces 2012 are fixedly connected to the inner side of the heating crucible 2011. The tangent angle between the spring pieces 2012 and the connection point of the inner side of the heating crucible 2011 is 30-45°.

[0037] In this embodiment, it should be specifically noted that the number of spring clips 2012 is six, but not limited to six, and is set according to actual production needs. When the angle between the spring clips 2012 and the heating crucible 2011 is adjusted to 30°, the power required for the rotation of the sludge removal component 202 is reduced by 15%-20%, which is suitable for low sludge concentration conditions and can reduce energy consumption. When the angle is adjusted to 45°, the rebound force of the spring clips is increased by 30%, and the generated airflow intensity is increased, which can efficiently carry high-concentration sludge powder into the cavity plate, improving the sewage discharge efficiency by more than 25%. The spring clips are made of 304 stainless steel with a thickness of 2-3mm, combining elasticity and corrosion resistance to avoid deformation due to long-term contact with sludge and high-temperature environments.

[0038] Referring to Figure 6, the dredging component 202 includes a hollow shaft 2021. A scraper 203 is fixedly sleeved at the bottom end of the hollow shaft 2021. Several sludge inlet grooves are provided on the side of the hollow shaft 2021. Several scraper blades 2022 are fixedly connected to the side of the hollow shaft 2021. A cavity plate 2023 is fixedly connected to one side of the scraper blade 2022, and the cavity formed by the scraper blade 2022 and the cavity plate 2023 communicates with the sludge inlet grooves. A sludge discharge hole is provided on the side of the hollow shaft 2021, and the sludge discharge hole is located above the sludge inlet grooves.

[0039] In this embodiment, it is necessary to specifically explain that the number of scrapers 2022, cavity plates 2023, and sludge inlets is the same, which is six, but not limited to six. The scraper 2022 rotates and squeezes the spring 2012. When the scraper 2022 passes the spring 2012, the spring 2012 rebounds and generates airflow in the inlet area of ​​the cavity plate 2023, which blows the surrounding sludge powder into the cavity plate 2023, promoting the discharge of sludge from the sludge removal component 202. During the rebound process, the spring 2012 hits the scraper 2022, causing the scraper 2022 to shake and shake off the dust adhering to the surface of the scraper 2022.

[0040] The angle between the tangents at the connection point between the spring 2012 and the inner side of the heating crucible 2011 is between 30° and 45°. The larger the angle, the greater the power required for the sludge removal component 202 to rotate and compress, the more energy is consumed, the greater the rebound force of the spring 2012, the better the effect of promoting sludge powder into the cavity plate 2023, the stronger the vibration generated by the rebound on the scraper 2022, and the better the effect of shaking off dust attachments. The smaller the angle, the less power required for the sludge removal component 202 to rotate and compress, the less energy is consumed, the smaller the rebound force of the spring 2012, the worse the effect of promoting sludge powder into the cavity plate 2023, the weaker the vibration generated by the rebound on the scraper 2022, and the worse the effect of shaking off dust attachments. It can be set according to actual needs.

[0041] Referring to Figure 7, the exhaust gas filtration assembly 3 includes a sealed housing 301. A top cover 302 is fixedly connected to the top of the sealed housing 301. Support columns are fixedly connected to the four corners of the bottom of the sealed housing 301, and the bottom ends of the four support columns are respectively fixedly connected to the four corners of the top of the sealing plate. A filter sheet 303 is fixedly sleeved in the middle of the bottom of the sealed housing 301. A motor is fixedly connected to the top of the top cover 302. An exhaust pipe 304 is fixedly connected to one side of the top cover 302. A sewage pipe is fixedly connected to the bottom of the front of the sealed housing 301.

[0042] In this embodiment, it should be specifically noted that the steam filter 303 retains large sludge blocks in the reactor assembly 201, thus playing a preliminary filtration role.

[0043] Papermaking wastewater is heated and cooked in a heating crucible 2011, causing it to vaporize and form water vapor. Simultaneously, a motor drives a hollow shaft 2021 to rotate, which in turn drives the sludge removal components 202 and scraper 203. The scraper 2022 continuously stirs the wastewater, accelerating its evaporation. After the water in the wastewater evaporates, the sludge settles to the bottom and dries and clumps due to high-temperature heating. At this point, the scraper 203 rotates, scooping up and crushing the dried sludge clumps. The rotation of the scraper 203 also lifts the sludge powder clumps. The sewage pipe is connected to a negative pressure system, which draws the sludge powder clumps into the hollow plate 2023 and transfers them to the hollow shaft 2021, finally discharging them from the sewage pipe. This process avoids the problems of high fiber content and high water content in the settled sludge, which can cause sludge to accumulate and clump at the bottom of the tank, increasing equipment operating resistance and leading to increased energy consumption.

[0044] Referring to Figure 8, the drive end of the motor is fixedly connected to a motor shaft 305, a filter 306 is fixedly sleeved on the inner side of the top of the sealed housing 301, a rotating brush assembly 307 is fixedly sleeved on the side of the motor shaft 305, and the rotating brush assembly 307 is located at the bottom of the filter 306. The bottom end of the motor shaft 305 is fixedly connected to the top of the hollow shaft 2021, the drain hole of the hollow shaft 2021 is fixedly connected to the port of the drain pipe, and a condensate recovery assembly 308 is fixedly sleeved on the inner side of the sealed housing 301.

[0045] In this embodiment, it is necessary to further explain that the sewage pipe is connected to a negative pressure system for sucking up sludge and dust. The negative pressure system is a conventional technical means, so it will not be described in detail.

[0046] Referring to Figure 9, the rotating brush assembly 307 includes a connector 3071, three fan blades 3072 are fixedly connected to the side of the connector 3071, and brush strips 3073 are fixedly connected to the top of each of the three fan blades 3072. The connector 3071 is fixedly sleeved on the side of the motor shaft 305.

[0047] In this embodiment, it should be specifically noted that the inclined design of the fan blade 3072 creates airflow when the rotating brush assembly 307 rotates, promoting the filtration of exhaust gas in the filter 306.

[0048] Referring to Figure 10, the condensate recovery assembly 308 includes four condenser pipes 3081. The sides of the four condenser pipes 3081 are provided with air inlet grooves. The top ends of the four condenser pipes 3081 are fixedly connected to an isolation plate, and the isolation plate is fixedly sleeved inside the sealed housing 301. The bottom ends of the four condenser pipes 3081 are fixedly connected to two return pipes 3082. Both ends of the return pipes 3082 are fixedly sleeved on the inner wall of the sealed housing 301. One end of the two return pipes 3082 is fixedly connected to a manifold pipe, and the bottom end of the manifold pipe is fixedly connected to the top of the water storage tank 103.

[0049] In this embodiment, it is necessary to further explain that the papermaking wastewater is vaporized by the evaporation component 2 and mixed with the exhaust gas. The vapor is partially liquefied through the condenser pipe 3081, so that some of the paper dust and particles in the exhaust gas are discharged into the condensate recovery component 308 along with the condensate, and finally flow into the water storage tank 103. The remaining exhaust gas is filtered by the filter 306 and finally becomes clean air that is discharged from the exhaust pipe. Then, the motor drives the motor shaft 305 to drive the rotating brush component 307. The brush strips 3073 rotate to sweep away the deposits at the bottom of the filter 306 and prevent them from forming a blockage. This process solves the problem that the papermaking exhaust gas contains a large amount of paper dust, fiber fragments, and filler dust, which easily clogs the equipment.

[0050] The working principle of this invention is as follows: Papermaking wastewater is heated and cooked in a heating crucible 2011, causing the wastewater to vaporize and form water vapor. At the same time, a motor drives the hollow shaft 2021 to rotate, which in turn drives the sludge removal component 202 and the scraper 203 to rotate. The scraper 2022 rotates to continuously stir the wastewater, accelerating the evaporation of the wastewater. After the water in the wastewater evaporates, the sludge settles to the bottom and dries and clumps due to high-temperature heating. At this time, the scraper 203 rotates to scoop up and crush the dried sludge clumps. The rotation of the scraper 203 will also lift the sludge powder clumps. The sewage pipe is connected to a negative pressure system. The negative pressure sucks the sludge powder clumps into the hollow plate 2023 and transfers them to the hollow shaft 2021. Finally, they are discharged from the sewage pipe. This process avoids the problem of high fiber content and high water content in the settled sludge, which causes sludge to accumulate and clump at the bottom of the pool, increasing the operating resistance of the equipment and leading to increased energy consumption.

[0051] The papermaking wastewater is vaporized using the evaporation component 2 and mixed with the exhaust gas. Part of the vapor is liquefied through the condenser pipe 3081, allowing some of the paper dust and particles in the exhaust gas to be discharged into the condensate recovery component 308 along with the condensate, and finally flow into the water storage tank 103. The remaining exhaust gas is filtered by the filter 306 and finally becomes clean air that is discharged from the exhaust pipe. The motor drives the motor shaft 305 to drive the rotating brush component 307, which rotates the brush strips 3073 to sweep away the deposits at the bottom of the filter 306 and prevent them from clogging. This process solves the problem that the papermaking exhaust gas contains a large amount of paper dust, fiber fragments, and filler dust, which easily clogs the equipment.

[0052] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0053] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0054] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A papermaking wastewater sedimentation separation and waste gas treatment device, comprising a heating assembly (1), wherein the heating assembly (1) includes a support frame (101), characterized in that, A reactor assembly (201) is mounted on the top of the support frame (101). A sludge removal assembly (202) is mounted on the inner side of the reactor assembly (201). A scraper (203) is mounted on the bottom end of the sludge removal assembly (202). A movable shaft (305) is mounted on the top end of the sludge removal assembly (202). A sealing shell (301) is mounted on the top of the reactor assembly (201). A filter (306) is mounted on the top end of the sealing shell (301). A rotating brush assembly (307) is mounted on the side of the movable shaft (305). A condensate recovery assembly (308) is mounted on the inner side of the sealing shell (301). The sludge removal assembly (202) is located in the reactor... The component (201) and the scraper (203) work together to discharge the accumulated sludge. The condensate recovery component (308) reduces the clogging of the filter (306). The rotating brush component (307) works with the motor shaft (305) to remove the deposits on the filter (306). The reactor component (201) includes a heating crucible (2011). A spring (2012) is installed on the inner side of the heating crucible (2011). The tangent angle between the spring (2012) and the inner side connection point of the heating crucible (2011) is 30-45°. Adjusting the angle between the spring (2012) and the heating crucible (2011) reduces energy consumption or promotes the discharge of sludge by the sludge removal component (202).

2. The papermaking wastewater sedimentation separation and waste gas treatment device according to claim 1, characterized in that: The top of the heating component (1) is fixedly connected to the evaporation component (2), and the top of the evaporation component (2) is fixedly connected to the exhaust gas filter component (3).

3. The papermaking wastewater sedimentation separation and waste gas treatment device according to claim 2, characterized in that: An electric heating block (102) is fixedly connected to the inner side of the support frame (101). Two wire harnesses are electrically connected to both sides of the electric heating block (102), and one end of each of the four wire harnesses is electrically connected to the inner wall of the support frame (101). A sealing plate is fixedly fitted to the top of the support frame (101), and a placement hole is provided on the top of the sealing plate. The placement hole exposes the heating end of the electric heating block (102). A water storage tank (103) is fixedly connected to one side of the support frame (101).

4. The papermaking wastewater sedimentation separation and waste gas treatment device according to claim 3, characterized in that: The evaporation assembly (2) includes a reaction vessel assembly (201). A sludge removal assembly (202) is rotatably connected to the inner side of the bottom of the reaction vessel assembly (201). A scraper (203) is fixedly sleeved on the side of the bottom end of the sludge removal assembly (202), and the scraper (203) is located at the bottom of the inside of the reaction vessel assembly (201). Several spring pieces (2012) are fixedly connected to the inner side of the heating crucible (2011).

5. The papermaking wastewater sedimentation separation and waste gas treatment device according to claim 4, characterized in that: The dredging component (202) includes a hollow shaft (2021), a scraper (203) is fixedly sleeved at the bottom end of the hollow shaft (2021), a plurality of sludge inlet grooves are provided on the side of the hollow shaft (2021), a plurality of scraper blades (2022) are fixedly connected to the side of the hollow shaft (2021), a cavity plate (2023) is fixedly connected to one side of the scraper blades (2022), and the cavity formed by the scraper blades (2022) and the cavity plate (2023) communicates with the sludge inlet grooves, and a sludge discharge hole is provided on the side of the hollow shaft (2021), and the sludge discharge hole is located above the sludge inlet grooves.

6. The papermaking wastewater sedimentation separation and waste gas treatment device according to claim 5, characterized in that: The exhaust gas filtration assembly (3) includes a sealed housing (301), a top cover (302) is fixedly connected to the top of the sealed housing (301), and pillars are fixedly connected to the four bottom corners of the sealed housing (301), with the bottom ends of the four pillars respectively fixedly connected to the top four corners of the sealing plate.

7. The papermaking wastewater sedimentation separation and waste gas treatment device according to claim 6, characterized in that: A filter plate (303) is fixedly sleeved in the middle of the bottom of the sealed housing (301), a motor is fixedly connected to the top of the top cover (302), an air outlet pipe (304) is fixedly connected to one side of the top cover (302), and a sewage discharge pipe is fixedly connected to the bottom of the front of the sealed housing (301).

8. The papermaking wastewater sedimentation separation and waste gas treatment device according to claim 7, characterized in that: The drive end of the motor is fixedly connected to a motor shaft (305). A filter (306) is fixedly sleeved on the inner side of the top of the sealed housing (301). A rotating brush assembly (307) is fixedly sleeved on the side of the motor shaft (305), and the rotating brush assembly (307) is located at the bottom of the filter (306). The bottom end of the motor shaft (305) is fixedly connected to the top of the hollow shaft (2021). The drain hole of the hollow shaft (2021) is fixedly connected to the port of the drain pipe. A condensate recovery assembly (308) is fixedly sleeved on the inner side of the sealed housing (301).

9. The papermaking wastewater sedimentation separation and waste gas treatment device according to claim 8, characterized in that: The rotating brush assembly (307) includes a connector (3071), on which three fan blades (3072) are fixedly connected. Each of the three fan blades (3072) is fixedly connected to a brush strip (3073) at its top. The connector (3071) is fixedly sleeved on the side of the motor shaft (305).

10. The papermaking wastewater sedimentation separation and waste gas treatment device according to claim 9, characterized in that: The condensate recovery assembly (308) includes four condenser tubes (3081). The four condenser tubes (3081) have air inlet grooves on their sides. The top ends of the four condenser tubes (3081) are fixedly connected to an isolation plate, which is fixedly sleeved inside the sealed housing (301). The bottom ends of the four condenser tubes (3081) are fixedly connected to two return pipes (3082). Both ends of the return pipes (3082) are fixedly sleeved on the inner wall of the sealed housing (301). One end of the two return pipes (3082) is fixedly connected to a manifold pipe, and the bottom end of the manifold pipe is fixedly connected to the top of the water storage tank (103).

Images