CN113336412B

CN113336412B - High-efficient purification sludge treatment evaporation to dryness equipment

Info

Publication number: CN113336412B
Application number: CN202110665587.8A
Authority: CN
Inventors: 王振宇
Original assignee: Individual
Current assignee: Chengwuhaote Chemical Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2022-07-01
Anticipated expiration: 2041-06-16
Also published as: CN113336412A

Abstract

The utility model discloses a high-efficient purification sludge treatment evaporation to dryness equipment includes: the device comprises a device body, wherein the device body comprises an outer barrel body which is provided with a water collecting cavity, a straight barrel filter screen which is provided with an extrusion cavity and a conical barrel filter screen which is provided with a pushing cavity are also arranged in the outer barrel body, the straight barrel filter screen and the conical barrel filter screen are matched and fixedly connected with each other, and the pushing cavity and the extrusion cavity are communicated with each other so that sludge in the conical barrel filter screen can be conveyed into the straight barrel filter screen; the installation support body, installation support body fixed mounting is provided with drive arrangement on the installation support body on the outer barrel, including the fixed main drive motor who sets up on the installation support body, the coaxial fixedly connected with output shaft of main drive motor's output, first driving pulley is connected with first driven pulleys transmission through first belt, the second driving pulley passes through the second belt and is connected with second driven pulleys transmission. The device can effectively reduce the water content and the harmful substance quality in the sludge.

Description

High-efficient purification sludge treatment evaporation to dryness equipment

Technical Field

The invention relates to sludge treatment equipment, in particular to high-efficiency purified sludge treatment and evaporation equipment.

Background

With the development of social economy and urbanization, the yield and the quantity of urban sewage are continuously increased. With the increase of the sewage treatment rate, a large amount of excess sludge is concomitantly produced. At present, the purification treatment process of sludge is more troublesome than sewage, most of water in the sludge needs to be removed firstly, and then a purification reagent is added into the dried sludge for treatment. At present, a common sludge dewatering machine adopts extrusion type dewatering, is suitable for sludge with low moisture content, and has unsatisfactory dewatering effect on sludge with high moisture content. Present sludge dewatering equipment is common to be belt filter press and fold spiral shell hydroextractor, and the device improves to current sludge dewatering equipment, and the dehydration effect of improvement mud that can be further can also purify the harmful substance in the mud, can think, and this technique is used for reducing dust pollution in present coal mine is excavated, has certain expectancy effect. However, the inventors have found that this technique is still practically implemented in many cases, for example, it is difficult to improve the existing sludge dewatering system, and the existing sludge dewatering apparatus lacks a structure for treating harmful substances in sludge.

Disclosure of Invention

In view of the above problems in the prior art, the present invention is directed to provide an apparatus for treating and evaporating sludge with high efficiency, which can effectively reduce water and harmful substances contained in the sludge.

In order to achieve the above object, an efficient purification sludge treatment and evaporation drying apparatus provided by the embodiment of the present invention includes:

the device comprises a device body, wherein the device body comprises an outer barrel body which is provided with a water collecting cavity, a straight barrel filter screen which is provided with an extrusion cavity and a conical barrel filter screen which is provided with a pushing cavity are also arranged in the outer barrel body, the straight barrel filter screen and the conical barrel filter screen are matched and fixedly connected with each other, and the pushing cavity and the extrusion cavity are communicated with each other so that sludge in the conical barrel filter screen can be conveyed into the straight barrel filter screen;

the installation support body, installation support body fixed mounting is on outer barrel, including the fixed main drive motor that sets up on the installation support body, the coaxial fixedly connected with output shaft of main drive motor, coaxial fixed cover is equipped with first driving pulley and second driving pulley on the output shaft in proper order, the first driven pulley of the coaxial fixedly connected with of one end of closing disc is kept away from to circular post, the circular post overcoat is equipped with the second driven pulley, the second driven pulley is with the coaxial fixed connection of closing disc, first driving pulley is connected with first driven pulley transmission through first belt, the second driving pulley passes through the second belt and is connected with the second driven pulley transmission, wherein the drive ratio of first driving pulley and first driven pulley slightly is greater than the drive ratio of second driving pulley and second driven pulley.

Preferably, the sludge storage part is arranged on the other side of the outer cylinder body and is provided with a sludge storage part, the sludge storage part is provided with a storage cavity for storing sludge which is not dewatered, in order to realize the action of guiding the sludge in the storage cavity into a straight filter screen and a conical filter screen, a feed hole which runs through the circular column is formed in the circular column, a plurality of guide outlets are uniformly formed in the outer wall of one end, close to the closed disc, of the conveying shaft, meanwhile, a feed hole groove which is communicated with the feed hole is formed in the conveying shaft, the guide outlets are communicated with the feed hole groove, the sludge storage part is fixedly connected with a conveying pipe, one end, far away from the sludge storage part, of the conveying pipe extends into the feed hole and is connected with the feed hole in a sealing and rotating mode, and the conveying pipe is fixedly connected with a sludge guide pump.

Preferably, a stirring structure is also generally arranged in the storage cavity.

Preferably, a conveying shaft is arranged in the conical filter screen and the straight filter screen, the length of a gap between the conveying shaft and the straight filter screen is designed to be 3.2-4.6cm, a spiral blade for conveying sludge is fixedly sleeved on the conveying shaft, the diameter of the spiral blade is matched with that of the conical filter screen and the straight filter screen, and the inner walls of the spiral blade, the conical filter screen and the straight filter screen are abutted.

As preferred, the one end of straight section of thick bamboo filter screen all rotates with outer barrel inner wall to be connected, the one end that outer barrel is close to awl section of thick bamboo filter screen is provided with circular opening, the internal matching of circular opening is provided with the closing disc, closing disc and the coaxial fixed connection of awl section of thick bamboo filter screen, the closing disc rotates with outer barrel is sealed to be connected, the one end that outer barrel is close to straight section of thick bamboo filter screen is encircleed and is provided with the inside arc discharge gate of a plurality of intercommunications, and is a plurality of the arc discharge gate all communicates with the extrusion chamber of straight section of thick bamboo filter screen inside.

Preferably, a discharging cover is fixedly sleeved outside one end of the outer cylinder body, which is close to the plurality of arc-shaped discharging ports, and the discharging cover integrally comprises a disc cover and a strip-shaped sludge outlet connected to the lower end of the disc cover; the central point of closing disc puts and is provided with the circular port, circular post is provided with in the circular port internal rotation matching, carry the coaxial fixed connection of axle and circular post, drive arrangement is used for driving circular post and closing disc and rotates simultaneously.

Preferably, the outer fixed mounting of ejection of compact cover has the filling tube, and the filling tube is with outside air-blowing device fixed connection and intercommunication, the filling tube runs through ejection of compact cover, outer barrel and transport axle in proper order, the equipartition has a plurality of aeration shower nozzles on the transport axle outer wall, be provided with cylinder type air cavity in the transport axle, the filling tube communicates with cylinder type air cavity, and is a plurality of aeration shower nozzle all communicates with cylinder type air cavity.

Preferably, the injection pipe is fixedly sleeved with a heating cylinder and communicated with the heating cylinder, an electric heating pipe is arranged in the heating cylinder, and the electric heating pipe is arranged in the heating cylinder in a snake shape.

Preferably, an arc-shaped water baffle is further arranged in the outer barrel body corresponding to the position of the air outlet, the arc-shaped water baffle is fixedly connected with the inner wall of the outer barrel body through a plurality of connecting rods, an air outlet barrel is further fixedly connected outside the outer barrel body, and the air outlet barrel corresponds to the position of the air outlet.

Preferably, a plurality of heat conduction fins are uniformly and fixedly arranged in the air outlet, the heat conduction fins are fixedly connected with the outer cylinder body, the inner wall of the outer cylinder body is provided with a heat conduction layer, and the heat conduction fins are fixedly connected with the heat conduction layer.

Compared with the prior art, the high-efficiency purification sludge treatment evaporation drying equipment provided by the invention can synchronously carry out two dewatering actions of centrifugation and extrusion on sludge by the aid of the centrifugation action and the two extrusion structures, and improves the dewatering rate of the sludge. When carrying out the dehydration to mud, the cooperation high temperature high-pressure gas carries out aeration operation to mud, can realize the evaporation to dryness action to mud, can also carry out the harmful substance in the mud and carry out the filtration purification. Compared with the common water injection dust settling method, the method has the advantages of high dehydration efficiency, good dehydration effect and sludge purification effect.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

Fig. 1 is a schematic perspective view of an efficient purified sludge treatment and evaporation drying device of the present invention.

Fig. 2 is a schematic side view structure diagram of the efficient purified sludge treatment and evaporation equipment of the present invention.

Fig. 3 is a schematic view of a top view structure of the high-efficiency purified sludge treatment and evaporation equipment of the present invention.

Fig. 4 is a schematic perspective view of a front view of the efficient purified sludge treatment and evaporation equipment of the present invention.

Fig. 5 is a schematic perspective view of the inside of the high-efficiency purified sludge treatment and evaporation equipment of the present invention.

Fig. 6 is a schematic perspective view of a driving device of the high-efficiency purified sludge treatment evaporation equipment of the invention.

Fig. 7 is a schematic view of the three-dimensional structure inside the discharging cover of the efficient purified sludge treatment and evaporation equipment of the invention.

Fig. 8 is a schematic view of a three-dimensional structure of an air outlet cylinder of the high-efficiency purified sludge treatment and evaporation equipment.

The main reference numbers:

1 … device body; 11 … outer cylinder; 12 … mounting rack body; 13 … sludge storage; 111 … water collecting cavity; 112 … straight tube screen; 113 … cone strainer; 114 … carry a shaft; 115 … helical blades; 116 … closure disc; 117 … discharge hood; 118 … discharge cone; 119 … circular columns; 121 … driving device; 131 … storage chamber; 132 … a delivery conduit; 133 … sludge lead-in pump; 1121 … pressing the cavity; 1131 … push lumen; 1171 … an infusion tube; 1172 … aeration nozzles; 1173 … heating the cartridge; 1174 … arc-shaped water baffle; 1175 … an outlet cylinder; 1176 … thermally conductive fins; 1177 … filtration device; 1211 … main drive motor; 1212 … an output shaft; 1213 … a first driving pulley; 1214 … a second drive pulley; 1215 … a first driven pulley; 1216 … second driven pulley.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present disclosure.

It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.

As shown in fig. 1 to 8, an efficient purified sludge treatment and evaporation drying apparatus provided by an embodiment of the present invention includes: the device comprises a device body 1, wherein the device body 1 comprises an outer cylinder 11 with a water collecting cavity 111 and an installation frame body 12 which is positioned on one side of the outer cylinder 11 and is provided with a driving device 121, the installation frame body 12 is fixedly installed on the outer cylinder 11, a straight cylinder filter screen 112 with an extrusion cavity 1121 and a conical cylinder filter screen 113 with a pushing cavity 1131 are also arranged in the outer cylinder 11, the straight cylinder filter screen 112 is matched and fixedly connected with the thin end of the conical cylinder filter screen 113, and the pushing cavity 1131 is communicated with the extrusion cavity 1121 so that sludge in the conical cylinder filter screen 113 can be conveyed into the straight cylinder filter screen 112; in order to realize the action of conveying the sludge in the cone filter screen 113 and the straight filter screen 112, in the invention, a conveying shaft 114 is arranged in the cone filter screen 113 and the straight filter screen 112, the whole conveying shaft 114 adopts a longer diameter design, the gap space between the conveying shaft 114 and the cone filter screen 113 is reduced from large to small, the gap length between the conveying shaft 114 and the straight filter screen 112 is designed to be 3.2-4.6cm, a spiral blade 115 for conveying the sludge is fixedly sleeved on the conveying shaft 114, the diameter of the spiral blade 115 is matched with that of the cone filter screen 113 and the straight filter screen 112, the spiral blade 115 is abutted against the inner walls of the cone filter screen 113 and the straight filter screen 112, and when the spiral blade 115, the cone filter screen 113 and the straight filter screen 112 rotate relatively, the sludge can be conveyed, which is called as an auger in the prior art and is commonly used for conveying materials.

When sludge is conveyed between the conical filter screens 113, the gap space between the conical filter screens 113 and the conveying shaft 114 is gradually reduced, so that a certain extrusion dehydration effect is achieved on the sludge, in addition, in the embodiment, the pitch of one section of the spiral blade 115 corresponding to the straight filter screen 112 is gradually reduced from the conical filter screens 113 to the straight filter screen 112, the size of the gap space where the sludge is located is also gradually reduced, a certain extrusion dehydration effect on the sludge is further achieved, a longer extrusion stroke section is generated, and the sludge is dehydrated;

generally speaking, in the process of conveying sludge in the cone filter screen 113 and the straight filter screen 112, water contained in the sludge will be filtered downwards, but the process of filtering water through the straight filter screen 112 and the cone filter screen 113 by leaning on the self-gravity of the sludge requires a long time, and the efficiency of sludge dewatering is low, for this situation, the prior art proposes a stacked spiral dewatering device, which utilizes a mode of gradually reducing the pitch of the spiral blades 115 to cooperate with the stacked filter plates to dewater the sludge, and this mode realizes the effect of sludge dewatering by squeezing action, and the dewatering effect can be improved, in the present invention, one end of the straight filter screen 112 is rotatably connected with the inner wall of the outer cylinder 11, one end of the outer cylinder 11 close to the cone filter screen 113 is provided with a circular opening, and a sealing disc 116 is arranged in the circular opening in a matching manner, the sealing disc 116 is coaxially and fixedly connected with the conical filter screen 113, the sealing disc 116 is connected with the outer cylinder 11 in a sealing and rotating manner, when the sealing disc 116 rotates, the conical filter screen 113 and the straight filter screen 112 can be driven to rotate, one end, close to the straight filter screen 112, of the outer cylinder 11 is provided with a plurality of arc-shaped discharge ports communicated with the interior in a surrounding manner, the arc-shaped discharge ports are all communicated with the extrusion cavity 1121 in the straight filter screen 112, a discharge cover 117 is fixedly sleeved outside one end, close to the arc-shaped discharge ports, of the outer cylinder 11, the discharge cover 117 integrally comprises a circular disc cover and a strip-shaped sludge outlet connected to the lower end of the circular disc cover, when sludge is extruded through the arc-shaped discharge ports, the sludge is led out along the strip-shaped sludge outlet at the lower end of the discharge cover 117, and a discharge conical cylinder 118 is fixedly arranged in the circular cover 117 to assist in discharging; a circular hole is formed in the center of the closing disc 116, a circular column 119 is rotatably and fittingly arranged in the circular hole, the conveying shaft 114 is coaxially and fixedly connected with the circular column 119, and the driving device 121 is used for driving the circular column 119 and the closing disc 116 to rotate simultaneously.

Fig. 6 shows a schematic structural diagram of a driving device 121 of the high-efficiency purified sludge treatment evaporating and drying equipment suitable for the invention. As shown in fig. 6, in some embodiments, different from a general driving device, in order to realize the relative rotation between the helical blade 115 and the straight-cylinder filter 112 and the conical-cylinder filter 113, and ensure that the straight-cylinder filter 112 and the conical-cylinder filter 113 are driven to rotate for centrifugal dewatering, a driving device 121 suitable for the present invention may include a main driving motor 1211 fixedly disposed on the mounting frame body 12, an output end of the main driving motor 1211 is coaxially and fixedly connected with an output shaft 1212, a first driving pulley 1213 and a second driving pulley 1214 are sequentially and coaxially and fixedly disposed on the output shaft 1212, one end of the circular column 119 far away from the sealing disc 116 is coaxially and fixedly connected with a first driven pulley 1215, a second driven pulley 1216 is sleeved on the circular column 119, the second driven pulley 1216 is coaxially and fixedly connected with the sealing disc 116, the first driving pulley 1213 is in transmission connection with the first driven pulley 1216 through a first belt, the second driving pulley 1214 is in transmission connection with the second driven pulley 1216 through a second belt, wherein the transmission ratio of the first driving pulley 1213 and the first driven pulley 1216 is slightly larger than that of the second driving pulley 1214 and the second driven pulley 1216, so that relative rotation is generated between the straight-cylinder filter screen 112 and the conical-cylinder filter screen 113 and the conveying shaft 114 in the process of simultaneous rotation, the sludge can be centrifugally moved while conveying the sludge, and the sludge dewatering effect is further realized.

In the present invention, the straight filter 112 and the conical filter 113 are the main treatment parts for sludge dewatering, and sludge needs to be introduced into the straight filter 112 and the conical filter 113, but the straight filter 112 and the conical filter 113 need to be rotated during operation, and thus feeding through the straight filter 112 and the conical filter 113 is inconvenient. Therefore, in some modifications, as shown in fig. 6, preferably, a sludge storage portion 13 is further provided at the other side of the outer cylinder 11, the sludge storage portion 13 is configured with a storage chamber 131 for storing sludge without dewatering, in order to realize the action of guiding the sludge in the storage chamber 131 into the straight filter 112 and the conical filter 113, a feed hole is provided on the circular column 119, a plurality of guide outlets are uniformly provided on the outer wall of the end of the conveying shaft 114 close to the closing disc 116, a feed hole slot communicating with the feed hole is provided in the conveying shaft 114, a plurality of guide outlets are communicated with the feed hole slot, the sludge storage portion 13 is fixedly connected with a conveying pipe 132, one end of the conveying pipe 132 far away from the sludge storage portion 13 extends into the feed hole and is connected with the feed hole in a sealing and rotating manner, and a sludge introducing pump 133 is fixedly connected to the conveying pipe 132, the sludge in the sludge storage part 13 can be guided into the feed hole groove in the conveying shaft 114 by the operation of the sludge guide pump 133, and then guided out through the plurality of guide outlets, so that the effect of rotating the material distribution is achieved, and the uniformity of the sludge entering is ensured. In practice, a stirring structure is also typically provided in the storage chamber 131. Therefore, the sludge stored in the storage cavity 131 can be stirred, water can be added into the storage cavity 131 to ensure the water content of the sludge, and the subsequent dehydration treatment is facilitated.

Further, as described above, in the present invention, the sludge is dewatered mainly by the centrifugal operation and the dewatering effect of the sludge is ensured by the squeezing operation, but the dewatering operation does not act as a sterilization effect on the sludge and the dewatering effect is only to remove interstitial water. For further realization of the killing degree and efficient dehydration action of the sludge, as a preferable result, as shown in fig. 7, an injection pipe 1171 is fixedly installed outside the discharge cover 117, the injection pipe 1171 is fixedly connected and communicated with an external air blowing device, clean and dry gas is pumped in through the air blowing device, the injection pipe 1171 sequentially penetrates through the discharge cover 117, the outer cylinder 11 and the conveying shaft 114, a plurality of aeration nozzles 1172 are uniformly distributed on the outer wall of the conveying shaft 114, a cylindrical air cavity is arranged in the conveying shaft 114, and the injection pipe 1171 is communicated with the cylindrical air cavity. However, it should be noted that the gap between the straight filter screen 112 and the conveying shaft 114 is small, which is inconvenient for the aeration operation, therefore, it is preferable that a plurality of aeration nozzles 1172 are located on a section of the conveying shaft 114 disposed on the conical filter screen 113, and the gap between the conical filter screen 113 and the outer cylinder 11 is small, so that the air outlet position on the outer cylinder 11 is disposed at the position corresponding to the straight filter screen 112, the injection pipe 1171 is fixedly sleeved and communicated with the heating cylinder 1173, the heating cylinder 1173 is internally provided with electric heating pipes, which are arranged in the heating cylinder 1173 in a serpentine shape, and can heat the gas introduced by the injection pipe 1171. In this way, the aeration and heating drying of the sludge can be realized, the section of the conveying shaft 114 corresponding to the straight filter screen 112 has the indirect heating function, and the section of the conveying shaft 114 corresponding to the conical filter screen 113 has the direct aeration and heating functions.

As mentioned above, in the present invention, the position of the outer cylinder 11 corresponding to the straight-cylinder filter screen 112 is a gas collecting position, and a gas outlet is directly arranged at the position of the outer cylinder 11 to lead out the gas after passing through the sludge, but the gas outlet arranged in this way directly corresponds to the straight-cylinder filter screen 112, and when the straight-cylinder filter screen 112 rotates for centrifugal dehydration, water is splashed out from the gas outlet. Therefore, in a further improvement of the present invention, an arc-shaped water baffle 1174 is further disposed in the outer cylinder 11 at a position corresponding to the air outlet, and a specific structure thereof is shown in fig. 7. As shown in fig. 7, the arc-shaped water baffle 1174 is fixedly connected with the inner wall of the outer cylinder 11 through a plurality of connecting rods, an air outlet cylinder 1175 is also fixedly connected with the outside of the outer cylinder 11, and the air outlet cylinder 1175 corresponds to the air outlet; meanwhile, in order to ensure that the heat of the gas is fully applied to the evaporation of the sludge, a plurality of heat conduction fins 1176 are uniformly and fixedly arranged in the gas outlet, the heat conduction fins 1176 are fixedly connected with the outer cylinder 11, a heat conduction layer is arranged on the inner wall of the outer cylinder 11, and the heat conduction fins 1176 are fixedly connected with the heat conduction layer to play a role in heat conduction.

In addition, in fig. 3 and 8, another modified version of the present invention is shown, in which a filter 1177 is also fixedly disposed within the outlet cylinder 1175. Of course, a specific implementation is provided in the present invention for the filtering function, the filtering unit 1177 adopts the prior art to perform the filtering process for the harmful substances possibly existing in the sludge, and the filtering unit 1177 needs to be replaced in order to ensure the filtering function of the filtering unit 1177. For example, the filtering device 1177 can be fixed to the air outlet cylinder 1175 through a structure such as a snap structure, which can be disassembled and replaced, and a sealing rubber ring is arranged in a gap between the filtering device 1177 and the air outlet cylinder 1175 for sealing, so that the sealing effect and the filtering effect of the filtering device 1177 are ensured.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents of the invention may be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims

1. The utility model provides a high-efficient purification sludge treatment evaporation to dryness equipment, includes:

the device body comprises an outer barrel body which is provided with a water collecting cavity, a straight barrel filter screen which is provided with an extrusion cavity and a cone barrel filter screen which is provided with a pushing cavity are arranged in the outer barrel body, the straight barrel filter screen is matched and fixedly connected with the thin end of the cone barrel filter screen, the pushing cavity is communicated with the extrusion cavity so that sludge in the cone barrel filter screen can be conveyed into the straight barrel filter screen, conveying shafts are arranged in the cone barrel filter screen and the straight barrel filter screen, the length of a gap between the conveying shafts and the straight barrel filter screen is designed to be 3.2-4.6cm, spiral blades for conveying sludge are fixedly sleeved on the conveying shafts, the diameters of the spiral blades are matched with the cone barrel filter screen and the straight barrel filter screen, the spiral blades, the cone barrel filter screen and the inner wall of the straight barrel filter screen are all abutted, one end of the straight barrel filter screen is rotatably connected with the inner wall of the outer barrel body, one end of the outer barrel body, which is close to the cone barrel filter screen, is provided with a circular opening, a sealing disc is arranged in the circular opening in a matching manner, the sealing disc is coaxially and fixedly connected with the conical filter screen, the sealing disc is connected with the outer cylinder body in a sealing and rotating manner, one end, close to the straight filter screen, of the outer cylinder body is provided with a plurality of arc-shaped discharge ports communicated with the interior in a surrounding manner, and the arc-shaped discharge ports are all communicated with the extrusion cavity in the straight filter screen;

the mounting frame body is fixedly arranged on the outer cylinder body, a driving device is arranged on the mounting frame body and comprises a main driving motor fixedly arranged on the mounting frame body, the output end of the main driving motor is coaxially and fixedly connected with an output shaft, a first driving belt wheel and a second driving belt wheel are sequentially coaxially and fixedly sleeved on the output shaft, one end of the circular column far away from the sealing disc is coaxially and fixedly connected with a first driven belt wheel, a second driven belt wheel is sleeved outside the circular column, the second driven belt wheel is coaxially and fixedly connected with the sealing disc, the first driving belt wheel is in transmission connection with the first driven belt wheel through a first belt, the second driving belt wheel is in transmission connection with the second driven belt wheel through a second belt, wherein the transmission ratio of the first driving pulley and the first driven pulley is slightly larger than that of the second driving pulley and the second driven pulley;

a discharging cover is fixedly sleeved outside one end of the outer cylinder body, which is close to the arc-shaped discharging ports, and the discharging cover integrally comprises a disc cover and a strip-shaped sludge outlet connected to the lower end of the disc cover; the central position of the closed disc is provided with a circular hole, a circular column is arranged in the circular hole in a rotating matching manner, the conveying shaft is coaxially and fixedly connected with the circular column, the driving device is used for driving the circular column and the closed disc to rotate simultaneously, an injection pipe is fixedly arranged outside the discharging cover and is fixedly connected and communicated with an external air blowing device, the injection pipe sequentially penetrates through the discharging cover, the outer cylinder body and the conveying shaft, a plurality of aeration nozzles are uniformly distributed on the outer wall of the conveying shaft, a cylindrical air cavity is arranged in the conveying shaft and is communicated with the cylindrical air cavity, a plurality of aeration nozzles are communicated with the cylindrical air cavity, a heating cylinder is fixedly sleeved and communicated on the injection pipe, an electric heating pipe is arranged in the heating cylinder in a snake shape, and an arc-shaped water baffle plate is also arranged in the outer cylinder body corresponding to the position of the air outlet, the arc-shaped water baffle is fixedly connected with the inner wall of the outer barrel through a plurality of connecting rods, the outer body of the outer barrel is fixedly connected with an air outlet barrel, the air outlet barrel corresponds to the position of an air outlet, a plurality of heat conduction fins are uniformly and fixedly arranged in the air outlet and are fixedly connected with the outer barrel, a heat conduction layer is arranged on the inner wall of the outer barrel, and the heat conduction fins are fixedly connected with the heat conduction layer.

2. The apparatus as claimed in claim 1, further comprising a sludge storage portion disposed on the other side of the outer cylinder, wherein the sludge storage portion is configured with a storage chamber for storing un-dewatered sludge, in order to realize the action of guiding the sludge in the storage chamber into the straight cylinder filter screen and the conical cylinder filter screen, the circular column is provided with a feed hole therethrough, the outer wall of one end of the conveying shaft close to the sealing disc is uniformly provided with a plurality of guide outlets, the conveying shaft is provided with a feed hole groove communicating with the feed hole, the plurality of guide outlets are all communicated with the feed hole groove, the sludge storage portion is fixedly connected with a feed pipe, one end of the feed pipe far away from the sludge storage portion extends into the feed hole and is connected with the feed hole in a sealing and rotating manner, and the feed pipe is fixedly connected with a sludge guide pump.

3. The apparatus of claim 2, further comprising a stirring structure disposed within the storage chamber.