A sludge chemical precipitation treatment device

Abstract

The present invention belongs to the technical field of sedimentation treatment devices, and discloses a sludge chemical sedimentation treatment device, which solves the problem that bactericide is not easy to be uniformly added into sewage, resulting in poor bactericidal effect. The device comprises a sedimentation tank, wherein a medicine mixing assembly is arranged above the sedimentation tank, and the medicine mixing assembly comprises a mixing cylinder arranged above the sedimentation tank, a water inlet pipe is installed at the top end of one side of the mixing cylinder, a drainage pipe is installed at the bottom end of the mixing cylinder, a valve is installed on the drainage pipe, a medicine charging unit is installed at the top end of the mixing cylinder, a rotation control unit is installed inside the mixing cylinder, and a support frame is fixedly installed between the sedimentation tank and the mixing cylinder; in the present invention, during operation, the first inner cavity of the inner cylinder is filled with bactericide, and the bactericide can be discharged through the one-way circulation unit on the stirring plate, and the stirring plate is driven to rotate by the rotation of the rotating shaft, so that the bactericide can uniformly enter the sewage.

Description

Technical Field

[0001] The invention belongs to the technical field of sedimentation treatment devices, in particular to a sludge chemical sedimentation treatment device. Background Art

[0002] When treating sewage containing sludge, there are a large number of microorganisms in the sewage, including bacteria, fungi, algae, etc. These microorganisms will multiply rapidly under suitable environmental conditions. For example, in the sewage treatment system, microorganisms may form biofilms on the inner walls of facilities such as pipes and reaction tanks. The continuous growth and thickening of biofilms will cause pipe blockage, reduce the flow of sewage, and affect the normal operation of sewage treatment facilities. Therefore, it is necessary to add bactericides to the sewage containing sludge, which can effectively inhibit the growth of microorganisms and prevent excessive formation of biofilms. However, there are the following defects:

[0003] During the process of adding fungicides, the adding position is generally fixed, which makes it difficult to evenly add the fungicides into the sewage, resulting in poor sterilization effect on sludge and sewage. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a sludge chemical precipitation treatment device, which effectively solves the problem that the bactericide is not easy to be evenly added to the sewage, resulting in poor bactericidal effect.

[0005] To achieve the above object, the present invention provides the following technical solution: a sludge chemical precipitation treatment device, comprising a sedimentation tank, wherein a reagent mixing assembly is arranged above the sedimentation tank;

[0006] The reagent mixing assembly includes a mixing drum arranged above the sedimentation tank, a water inlet pipe is installed at the top of one side of the mixing drum, a drain pipe is installed at the bottom of the mixing drum, a valve is installed on the drain pipe, a reagent charging unit is installed at the top of the mixing drum, a rotation control unit is installed inside the mixing drum, and a support frame is fixedly installed between the sedimentation tank and the mixing drum;

[0007] The rotation control unit includes a rotating shaft rotatably installed on the top of the mixing barrel, a longitudinal groove is opened inside the rotating shaft, side sliding grooves are opened at equal angles outside the longitudinal groove, a drug dosing unit is installed inside the longitudinal groove, and rod grooves are opened at both upper and lower ends of the rotating shaft.

[0008] Preferably, two limit plates are installed on the outer wall of the rotating shaft, and the two limit plates are in contact with the top wall and the inner top wall of the mixing barrel respectively. A gear ring is installed on the outer wall of the rotating shaft, and a liquid filling groove is eccentrically opened at the top end of the rotating shaft.

[0009] Preferably, the medicine filling unit includes a fixed cover fixedly mounted on the top of the mixing barrel, the fixed cover covers the outside of the top of the rotating shaft, a fixed screw is fixedly mounted on the inner top wall of the fixed cover, the fixed screw passes through the rod groove, a side groove is opened on one side of the fixed cover, a gear is arranged inside the side groove, the gear is fixedly connected to the output shaft of the forward and reverse motor, and the gear is meshed with the gear ring.

[0010] Preferably, a liquid-filling longitudinal tube is eccentrically installed at the top of the fixed cover, the position of the liquid-filling longitudinal tube corresponds to the position of the liquid-filling tank, a liquid-filling transverse tube is installed on one side of the liquid-filling longitudinal tube, a receiving tube is installed at the top of the liquid-filling longitudinal tube, and an electromagnet is installed at the top of the receiving tube.

[0011] Preferably, the drug dosing unit includes an inner tube movably installed inside the longitudinal groove, a screw groove is opened in the middle of the inner tube, the screw groove is threadedly connected to the fixed screw, stirring plates are provided at equal angles on the outside of the inner tube, the stirring plates are slidingly connected to the side slide grooves, a first inner cavity is opened inside the inner tube, the first inner cavity is coaxially arranged on the outside of the screw groove, a second inner cavity is opened inside the stirring plate, the second inner cavity is connected to the first inner cavity, a one-way flow unit is installed on the stirring plate, and a dosing drive unit is installed inside the first inner cavity.

[0012] Preferably, a liquid-filled inner tube is fixedly installed inside the first inner cavity, the top end of the liquid-filled inner tube is connected to the top end of the internal cylinder, and the position of the liquid-filled inner tube corresponds to the position of the liquid-filled groove, liquid-filling holes are opened at equal angles at the bottom end of the outer wall of the liquid-filled inner tube, a counterweight columnar plug is inserted into the interior of the liquid-filled inner tube, and a first magnetic block is fixedly installed on the top end of the counterweight columnar plug.

[0013] Preferably, the dosing drive unit includes a pressure piston movably mounted inside the first inner cavity, a through hole being opened on the pressure piston, the inner wall of the through hole being in close contact with the outer wall of the liquid-filled inner tube, a bottom rod being fixedly mounted on the bottom end of the pressure piston, the bottom end of the bottom rod extending to the bottom of the inner tube, a counterweight being fixedly mounted on the bottom end of the bottom rod, a second magnetic block being fixedly mounted on the bottom end of the counterweight, the second magnetic block being on the same longitudinal straight line as the first magnetic block, and the magnetism of the second magnetic block being the same as that of the first magnetic block.

[0014] Preferably, the one-way flow unit includes a fixed cylinder equidistantly installed on the side wall of the stirring plate, an internal groove is opened inside the fixed cylinder, and end grooves are symmetrically opened at both ends of the internal groove, one of the end grooves is connected to the first inner cavity, and the other end groove passes through the outside of the fixed cylinder, and the inner diameter of the internal groove is larger than the inner diameter of the end groove.

[0015] Preferably, an internal block is movably installed inside the internal groove, an end block is fixedly installed on the side of the internal block away from the stirring plate, the outer wall of the internal block is in close contact with the inner wall of the internal groove, the outer wall of the end block is in close contact with the inner wall of the end groove, a spring is fixedly installed on the side of the internal block away from the stirring plate, a transverse connecting groove is provided inside the end block, two ends of the transverse connecting groove respectively penetrate to the outside of the end block and penetrate into the inside of the internal block, L-shaped connecting grooves are provided inside the internal block at equal angles, one end of the L-shaped connecting groove is connected to the transverse connecting groove, and the other end of the L-shaped connecting groove is closed by the inner wall of the internal groove on one side close to the stirring plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] During operation, the mixing drum is rotatably connected with the rotating shaft, and the first inner cavity of the inner drum is filled with bactericide, and the bactericide can be discharged through the one-way flow unit on the stirring plate. The stirring plate is driven to rotate by the rotating shaft, so that the bactericide can evenly enter the sewage, and the bactericide and sewage are stirred at the same time, thereby improving the sludge treatment effect;

[0018] During operation, the internal cylinder can move longitudinally along the longitudinal groove, and the internal cylinder is threadedly connected to the fixed screw through the screw groove. After the rotating shaft rotates, the internal cylinder is driven to move longitudinally, so that the stirring plate can move longitudinally, so that the bactericide can enter the sewage at different depths, thereby further improving the uniformity of bactericide addition;

[0019] During operation, when the internal cylinder is at the top of the longitudinal groove, the liquid-filled longitudinal tube, the liquid-filled groove and the liquid-filled inner tube correspond to each other, and the outer wall bottom of the liquid-filled inner tube is provided with liquid-filled holes at equal angles, so that the fungicide can be easily introduced into the first inner cavity and the second inner cavity, and the subsequent addition of the fungicide can be easily performed, and the fungicide can be easily filled under the pressing piston, so that the subsequent pressing of the fungicide into the sewage can be easily performed;

[0020] During operation, a weighted cylindrical plug is inserted into the liquid-filled inner tube. When filling with bactericide, the weighted cylindrical plug is attracted to the inside of the containing tube to facilitate the filling of the bactericide. When adding the bactericide, the weighted cylindrical plug returns to the liquid-filled inner tube. On the one hand, it prevents the bactericide from being discharged from the liquid-filled inner tube, and on the other hand, it prevents sewage from entering the first inner cavity, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0022] In the attached picture:

[0023] Figure 1It is a schematic structural diagram of a sludge chemical precipitation treatment device of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the medicine mixing assembly of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the medicine charging unit of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the rotation control unit of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the drug dosing unit of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the liquid-filled inner tube of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the one-way flow unit of the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the dosing drive unit of the present invention.

[0031] In the figure: 1, sedimentation tank; 2, reagent mixing assembly; 201, mixing barrel; 202, water inlet pipe; 203, drainage pipe; 204, reagent charging unit; 2041, fixed cover; 2042, liquid filling longitudinal pipe; 2043, liquid filling transverse pipe; 2044, receiving pipe; 2045, electromagnet; 2046, side groove; 2047, gear; 2048, forward and reverse motor; 2049, fixed screw; 205, rotation control unit; 2051, rotating shaft; 2052, limit plate; 2053, gear ring; 2054, longitudinal groove; 2055, side slide groove; 2056, rod groove; 2057, liquid filling tank; 206, reagent dosing unit; 2061, inner 1. The first inner chamber; 2062. The screw groove; 2063. The stirring plate; 2064. The first inner chamber; 2065. The second inner chamber; 2066. The liquid-filled inner tube; 2067. The liquid-filled hole; 2068. The counterweight cylindrical plug; 2069. The first magnetic block; 207. The one-way flow unit; 2071. The fixed cylinder; 2072. The inner groove; 2073. The end groove; 2074. The inner block; 2075. The end block; 2076. The transverse connecting groove; 2077. The L-shaped connecting groove; 2078. The spring; 208. The dosing drive unit; 2081. The pressing piston; 2082. The through hole; 2083. The bottom rod; 2084. The counterweight block; 2085. The second magnetic block; 3. The support frame. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Depend on Figure 1-8 The present invention relates to a sludge chemical precipitation treatment device, comprising a sedimentation tank 1, and a reagent mixing component 2 is arranged above the sedimentation tank 1;

[0034] The reagent mixing assembly 2 includes a mixing drum 201 disposed above the sedimentation tank 1, a water inlet pipe 202 is installed at the top of one side of the mixing drum 201, a drain pipe 203 is installed at the bottom of the mixing drum 201, a valve is installed on the drain pipe 203, a reagent charging unit 204 is installed at the top of the mixing drum 201, a rotation control unit 205 is installed inside the mixing drum 201, a support frame 3 is fixedly installed between the sedimentation tank 1 and the mixing drum 201, and the rotation control unit 205 includes a rotation shaft 2051 rotatably installed at the top of the mixing drum 201, and the rotation shaft 2051 is installed at the top of the mixing drum 201. A longitudinal groove 2054 is provided inside 051, and side grooves 2055 are provided at equal angles on the outside of the longitudinal groove 2054. A medicine adding unit 206 is installed inside the longitudinal groove 2054. Rod grooves 2056 are provided at the upper and lower ends of the rotating shaft 2051. Two limit plates 2052 are installed on the outer wall of the rotating shaft 2051, and the two limit plates 2052 are respectively in contact with the top wall and the inner top wall of the mixing barrel 201. A gear ring 2053 is installed on the outer wall of the rotating shaft 2051, and a liquid filling groove 2057 is eccentrically provided at the top of the rotating shaft 2051.

[0035] The medicine filling unit 204 includes a fixed cover 2041 fixedly mounted on the top of the mixing barrel 201, the fixed cover 2041 covers the outer side of the top of the rotating shaft 2051, and a fixed screw 2049 is fixedly mounted on the inner top wall of the fixed cover 2041. The fixed screw 2049 passes through the rod groove 2056. A side groove 2046 is opened on one side of the fixed cover 2041, and a gear 2047 is arranged inside the side groove 2046. The gear 2047 is connected to the forward and reverse rotation. The output shaft of the motor 2048 is fixedly connected, the gear 2047 is meshed with the gear ring 2053, and a liquid-filling longitudinal tube 2042 is eccentrically installed at the top of the fixed cover 2041. The position of the liquid-filling longitudinal tube 2042 corresponds to the position of the liquid-filling groove 2057. A liquid-filling transverse tube 2043 is installed on one side of the liquid-filling longitudinal tube 2042, a receiving tube 2044 is installed at the top of the liquid-filling longitudinal tube 2042, and an electromagnet 2045 is installed at the top of the receiving tube 2044.

[0036] The drug dosing unit 206 includes an inner tube 2061 movably mounted inside the longitudinal groove 2054, a screw groove 2062 is provided in the middle of the inner tube 2061, the screw groove 2062 is threadedly connected to the fixed screw 2049, a stirring plate 2063 is provided at an equal angle on the outer side of the inner tube 2061, the stirring plate 2063 is slidably connected to the side slide groove 2055, a first inner cavity 2064 is provided inside the inner tube 2061, the first inner cavity 2064 is coaxially arranged on the outer side of the screw groove 2062, the stirring plate 2063 A second inner cavity 2065 is provided inside the inner tube 2061, and the second inner cavity 2065 is connected to the first inner cavity 2064. A one-way flow unit 207 is installed on the stirring plate 2063. A dosing drive unit 208 is installed inside the first inner cavity 2064. A liquid filling inner tube 2066 is fixedly installed inside the first inner cavity 2064. The top of the liquid filling inner tube 2066 is connected to the top of the inner tube 2061, and the position of the liquid filling inner tube 2066 corresponds to the position of the liquid filling tank 2057. The outer wall of the liquid filling inner tube 2066 A filling hole 2067 is provided at the bottom at an equal angle, a counterweight columnar plug 2068 is inserted into the inner part of the filling inner tube 2066, and a first magnetic block 2069 is fixedly installed on the top of the counterweight columnar plug 2068. The inner cylinder 2061 can move longitudinally along the longitudinal groove 2054, and the inner cylinder 2061 is threadedly connected to the fixed screw 2049 through the screw groove 2062. After the rotating shaft 2051 rotates, the inner cylinder 2061 is driven to move longitudinally, so that the stirring plate 2063 can move longitudinally, so that the bactericide can enter In order to further improve the uniformity of fungicide addition in sewage at different depths, a weighted cylindrical plug 2068 is inserted into the liquid-filled inner tube 2066. When the fungicide is filled, the weighted cylindrical plug 2068 is attracted to the inside of the containing tube 2044 to facilitate the filling of the fungicide. When the fungicide is added, the weighted cylindrical plug 2068 returns to the liquid-filled inner tube 2066. On the one hand, it prevents the fungicide from being discharged from the liquid-filled inner tube 2066, and on the other hand, it prevents sewage from entering the first inner cavity 2064, which is convenient for use.

[0037] The dosing drive unit 208 includes a pressure piston 2081 movably mounted inside the first inner cavity 2064, a through hole 2082 is provided on the pressure piston 2081, the inner wall of the through hole 2082 is in close contact with the outer wall of the liquid-filled inner tube 2066, a bottom rod 2083 is fixedly mounted on the bottom end of the pressure piston 2081, the bottom end of the bottom rod 2083 passes through the bottom of the inner tube 2061, a counterweight block 2084 is fixedly mounted on the bottom end of the bottom rod 2083, and a second magnetic block 2085 is fixedly mounted on the bottom end of the counterweight block 2084, and the second magnetic block 2085 is in the same position as the first magnetic block 2069. On a longitudinal straight line, the magnetism of the second magnetic block 2085 is the same as that of the first magnetic block 2069. When the inner tube 2061 is at the top of the longitudinal groove 2054, the liquid-filled longitudinal tube 2042, the liquid-filled groove 2057 and the liquid-filled inner tube 2066 correspond to each other. Liquid-filled holes 2067 are provided at equal angles at the bottom of the outer wall of the liquid-filled inner tube 2066 to facilitate the passage of the bactericide into the first inner cavity 2064 and the second inner cavity 2065, to facilitate the subsequent addition of the bactericide, and to facilitate the filling of the bactericide to the bottom of the pressing piston 2081, to facilitate the subsequent pressing of the bactericide into the sewage.

[0038] The one-way flow unit 207 includes a fixed cylinder 2071 equidistantly installed on the side wall of the stirring plate 2063, an internal groove 2072 is provided inside the fixed cylinder 2071, and end grooves 2073 are symmetrically provided at both ends of the internal groove 2072, one of the end grooves 2073 is connected to the first inner cavity 2064, and the other end groove 2073 penetrates to the outside of the fixed cylinder 2071, the inner diameter of the internal groove 2072 is larger than the inner diameter of the end groove 2073, an internal block 2074 is movably installed inside the internal groove 2072, an end block 2075 is fixedly installed on the side of the internal block 2074 away from the stirring plate 2063, the outer wall of the internal block 2074 is in close contact with the inner wall of the internal groove 2072, the outer wall of the end block 2075 is in close contact with the inner wall of the end groove 2073, a spring 2078 is fixedly installed on the side of the internal block 2074 away from the stirring plate 2063, and the end A transverse connecting groove 2076 is provided inside the block 2075, and the two ends of the transverse connecting groove 2076 respectively penetrate to the outside of the end block 2075 and the inside of the internal block 2074. An L-shaped connecting groove 2077 is provided at equal angles inside the internal block 2074, and one end of the L-shaped connecting groove 2077 is connected to the transverse connecting groove 2076, and the other end of the L-shaped connecting groove 2077 is closed by the inner wall of the internal groove 2072 on one side close to the stirring plate 2063. The rotating shaft 2051 is rotatably connected to the mixing barrel 201, and the first inner cavity 2064 of the internal barrel 2061 is filled with bactericide, and the bactericide can be discharged through the one-way flow unit 207 on the stirring plate 2063. The rotating shaft 2051 rotates to drive the stirring plate 2063 to rotate, so that the bactericide can evenly enter the sewage, and at the same time, the bactericide and sewage are stirred, thereby improving the sludge treatment effect.

[0039] Working principle: In the original state, the top of the inner tube 2061 is in close contact with the inner top wall of the longitudinal groove 2054, and the top of the rotating shaft 2051 is in close contact with the inner top wall of the fixed cover 2041. At this time, the liquid filling inner tube 2066, the liquid filling groove 2057 and the liquid filling longitudinal tube 2042 correspond to each other;

[0040] The sewage to be treated with sludge is introduced into the mixing cylinder 201 from the water inlet pipe 202 until the liquid level of the sewage reaches the top of the fixed cylinder 2071;

[0041] The user controls the electromagnet 2045 to be energized, thereby generating attraction to the first magnetic block 2069 and the second magnetic block 2085, thereby driving the weighted cylindrical plug 2068 to move upward to the inside of the receiving tube 2044, and at the same time, the piston 2081 is pressed to move upward until it contacts the inner top wall of the first inner cavity 2064, and then the sludge bactericide is introduced from the liquid-filling transverse tube 2043, and the medicine enters the first inner cavity 2064 and the second inner cavity 2065 through the liquid-filling groove 2057, the liquid-filling inner tube 2066 and the liquid-filling hole 2067 for storage. At this time, under the action of the external sewage water pressure, the end of the L-shaped connecting groove 2077 on the internal block 2074 is still closed by the inner wall of the internal groove 2072, so that the medicine will not be discharged;

[0042] Then, the electromagnet 2045 is disconnected, and the weighted cylindrical plug 2068 returns to the liquid-filled inner tube 2066 under the action of gravity, pushing the medicine in the liquid-filled inner tube 2066 completely into the first inner cavity 2064, and preventing the sewage from entering the first inner cavity 2064 through the liquid-filled inner tube 2066. At the same time, the pressing piston 2081 moves downward under the gravity of the weighted block 2084. Under the pressure of the pressing piston 2081, the pressure on the side of the inner block 2074 close to the second inner cavity 2065 is greater than the water pressure of the external sewage, thereby pushing the inner block 2074 toward the side away from the stirring plate 2063, so that the medicine enters the mixing cylinder 201 through the L-shaped connecting groove 2077 and the transverse connecting groove 2076 to mix with the sewage;

[0043] At the same time, the forward and reverse motors 2048 are turned on to drive the gear 2047 to rotate. Since the gear 2047 is meshed with the gear ring 2053, the longitudinal groove 2054 is driven to rotate. During the rotation, the stirring plate 2063 is slidably connected with the side slide groove 2055, thereby driving the internal cylinder 2061 to rotate continuously, so that the stirring plate 2063 continuously stirs the sewage, and the medicine is also introduced into the sewage along with the stirring plate 2063, so that the medicine and the sewage are evenly mixed, thereby improving the treatment effect of the sludge;

[0044] A fixed screw 2049 is fixedly installed on the inner top wall of the fixed cover 2041, and the internal cylinder 2061 is threadedly connected to the fixed screw 2049 through the screw groove 2062, thereby driving the internal cylinder 2061 to rotate and move longitudinally along the fixed screw 2049, so that the stirring plate 2063 can stir the sewage of different depths, and the medicine can enter the sewage of different depths, further improving the uniform mixing of the medicine and the sewage, and improving the treatment effect of the sludge. The forward and reverse motor 2048 intermittently passes forward and reverse currents, so that the internal cylinder 2061 intermittently rotates forward and reversely, and moves back and forth longitudinally along the fixed screw 2049. At the same time, after the addition of the bactericide is completed, the flocculant can be refilled so that the flocculant can be evenly added to the sewage containing the sludge, thereby improving the sedimentation effect;

[0045] After the sewage is fully in contact with the bactericidal agent for sterilization, the valve on the drain pipe 203 is opened to allow the sewage to enter the sedimentation tank 1 through the drain pipe 203, and to stand still in the sedimentation tank 1 so that the sludge in the sewage flocculates and settles, and then the sludge sediment is treated.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sludge chemical precipitation treatment device, comprising a sedimentation tank (1), characterized in that: A reagent mixing assembly (2) is arranged above the sedimentation tank (1); The reagent mixing assembly (2) comprises a mixing drum (201) arranged above the sedimentation tank (1); a water inlet pipe (202) is installed at the top end of one side of the mixing drum (201); a drainage pipe (203) is installed at the bottom end of the mixing drum (201); a valve is installed on the drainage pipe (203); a reagent charging unit (204) is installed at the top end of the mixing drum (201); a rotation control unit (205) is installed inside the mixing drum (201); and a support frame (3) is fixedly installed between the sedimentation tank (1) and the mixing drum (201); The rotation control unit (205) comprises a rotation shaft (2051) rotatably mounted on the top of the mixing barrel (201); a longitudinal groove (2054) is provided inside the rotation shaft (2051); side sliding grooves (2055) are provided at equal angles outside the longitudinal groove (2054); a medicine dosing unit (206) is installed inside the longitudinal groove (2054); and rod grooves (2056) are provided at both upper and lower ends of the rotation shaft (2051); A gear ring (2053) is mounted on the outer wall of the rotating shaft (2051), and a liquid filling groove (2057) is eccentrically provided at the top of the rotating shaft (2051); The medicine filling unit (204) comprises a fixed cover (2041) fixedly mounted on the top of the mixing barrel (201), the fixed cover (2041) covers the outside of the top of the rotating shaft (2051), a fixed screw (2049) is fixedly mounted on the inner top wall of the fixed cover (2041), the fixed screw (2049) passes through the rod groove (2056), a side groove (2046) is opened on one side of the fixed cover (2041), a gear (2047) is arranged inside the side groove (2046), the gear (2047) is fixedly connected to the output shaft of the forward and reverse motor (2048), and the gear (2047) is meshed with the gear ring (2053); A liquid filling longitudinal tube (2042) is eccentrically mounted on the top of the fixed cover (2041); the position of the liquid filling longitudinal tube (2042) corresponds to the position of the liquid filling groove (2057); a liquid filling transverse tube (2043) is mounted on one side of the liquid filling longitudinal tube (2042); a receiving tube (2044) is mounted on the top of the liquid filling longitudinal tube (2042); and an electromagnet (2045) is mounted on the top of the receiving tube (2044); The drug dosing unit (206) comprises an inner tube (2061) movably mounted inside the longitudinal groove (2054); a screw groove (2062) is provided in the middle of the inner tube (2061); the screw groove (2062) is threadedly connected to the fixed screw (2049); stirring plates (2063) are provided at equal angles on the outer side of the inner tube (2061); the stirring plates (2063) are slidably connected to the side slide groove (2055); a first inner cavity (2064) is provided inside the inner tube (2061); the first inner cavity (2064) is coaxially arranged on the outer side of the screw groove (2062); a second inner cavity (2065) is provided inside the stirring plate (2063); the second inner cavity (2065) is communicated with the first inner cavity (2064); a one-way circulation unit (207) is installed on the stirring plate (2063); and a dosing drive unit (208) is installed inside the first inner cavity (2064); A liquid-filled inner tube (2066) is fixedly installed inside the first inner cavity (2064); the top end of the liquid-filled inner tube (2066) is connected to the top end of the inner tube (2061); the position of the liquid-filled inner tube (2066) corresponds to the position of the liquid-filled groove (2057); liquid-filled holes (2067) are provided at equal angles at the bottom end of the outer wall of the liquid-filled inner tube (2066); a weighted columnar plug (2068) is inserted into the interior of the liquid-filled inner tube (2066); and a first magnetic block (2069) is fixedly installed at the top end of the weighted columnar plug (2068); The dosing drive unit (208) comprises a pressure piston (2081) movably mounted inside the first inner cavity (2064); a through hole (2082) is provided on the pressure piston (2081); the inner wall of the through hole (2082) is in close contact with the outer wall of the liquid-filled inner tube (2066); a bottom rod (2083) is fixedly mounted on the bottom end of the pressure piston (2081); the bottom end of the bottom rod (2083) extends to the bottom of the inner tube (2061); a counterweight (2084) is fixedly mounted on the bottom end of the bottom rod (2083); a second magnetic block (2085) is fixedly mounted on the bottom end of the counterweight (2084); the second magnetic block (2085) and the first magnetic block (2069) are on the same longitudinal straight line; the magnetism of the second magnetic block (2085) is the same as that of the first magnetic block (2069).

2. A sludge chemical precipitation treatment device according to claim 1, characterized in that: Two limit plates (2052) are mounted on the outer wall of the rotating shaft (2051), and the two limit plates (2052) are in contact with the top wall and the inner top wall of the mixing barrel (201), respectively.

3. A sludge chemical precipitation treatment device according to claim 1, characterized in that: The one-way circulation unit (207) comprises a fixed cylinder (2071) equidistantly mounted on the side wall of the stirring plate (2063); an internal groove (2072) is provided inside the fixed cylinder (2071); end grooves (2073) are symmetrically provided at both ends of the internal groove (2072); one end groove (2073) is connected to the first inner cavity (2064); the other end groove (2073) penetrates to the outside of the fixed cylinder (2071); and the inner diameter of the internal groove (2072) is greater than the inner diameter of the end groove (2073).

4. A sludge chemical precipitation treatment device according to claim 3, characterized in that: An internal block (2074) is movably installed inside the internal groove (2072); an end block (2075) is fixedly installed on a side of the internal block (2074) away from the stirring plate (2063); an outer wall of the internal block (2074) is in close contact with the inner wall of the internal groove (2072); an outer wall of the end block (2075) is in close contact with the inner wall of the end groove (2073); a spring (2078) is fixedly installed on a side of the internal block (2074) away from the stirring plate (2063); and the end block (2075) is fixedly installed with a spring (2078). ) is provided with a transverse connecting groove (2076), the two ends of the transverse connecting groove (2076) respectively penetrate to the outside of the end block (2075) and penetrate to the inside of the internal block (2074), and the inside of the internal block (2074) is provided with L-shaped connecting grooves (2077) at equal angles, one end of the L-shaped connecting groove (2077) is connected to the transverse connecting groove (2076), and the other end of the L-shaped connecting groove (2077) is closed by the inner wall of the internal groove (2072) on one side close to the stirring plate (2063).

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