Heavy metal sewage treatment equipment and method

Abstract

The invention relates to the field of sewage treatment equipment, in particular to heavy metal sewage treatment equipment and method.The heavy metal sewage treatment equipment comprises a sewage treatment barrel, the sewage treatment barrel comprises an upper barrel body, a medicine inlet cavity is fixedly connected to the middle of the top end of the upper barrel body, a servo motor is installed at the top of the medicine inlet cavity, and a rotating shaft is fixedly connected to the bottom driving end of the servo motor; a medicine inlet pipe is fixedly connected to the middle of one side of the medicine inlet cavity, a through opening is formed in the bottom of the medicine inlet cavity and penetrates through the middle of the interior of the top end of the upper barrel body, a limiting ring is fixedly connected to the top of the interior of the upper barrel body, a medicine distribution bin is rotationally connected to the interior of the limiting ring, and a heating plate is installed in the middle of the interior of the medicine distribution bin; a reserved opening is formed in the middle of the heating plate, preset holes which are evenly distributed are formed in the bottom of the medicine distribution bin, and the situations that when sewage is stirred, surging water spray is generated, and metal impurities are left on the upper wall in the sewage treatment barrel and cannot flow back can be avoided.

Description

Technical Field

[0001] The present invention relates to the field of sewage treatment equipment, and in particular to a heavy metal sewage treatment equipment and method. Background Art

[0002] Heavy metal sewage originates from all aspects of production and life. Its characteristic is that it contains a large amount of heavy metal elements. Nowadays, this type of sewage has become one of the most polluted industrial wastewaters with the greatest harm to human health. In the traditional sewage treatment process, although flocculants and gravity sedimentation of suspended solids are used, the actual effect is not ideal, the sedimentation efficiency is low, and the ability to remove heavy metals is also weak. At the same time, sewage often produces agitation during stirring, resulting in splashing water and metal impurities remaining on the upper wall of the sewage treatment barrel and unable to flow back. The precipitated metal impurities are solidified inside the treatment equipment and are difficult to clean, which is often not conducive to long-term sewage treatment. Therefore, we propose a heavy metal sewage treatment equipment and method to solve the above-mentioned problems. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a heavy metal wastewater treatment device and method.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a heavy metal sewage treatment equipment, including a sewage treatment barrel, the sewage treatment barrel including an upper barrel body, a medicine feed chamber is fixedly connected to the middle part of the top end of the upper barrel body, a servo motor is installed on the top of the medicine feed chamber, a rotating shaft is fixedly connected to the bottom driving end of the servo motor, a medicine feed pipe is fixedly connected to the middle part of one side of the medicine feed chamber, a through opening is provided at the bottom of the medicine feed chamber, the through opening passes through the middle part of the top end of the upper barrel body, a limiting ring is fixedly connected to the top of the upper barrel body, a medicine distribution bin is rotatably connected inside the limiting ring, a heating plate is installed in the middle part of the medicine distribution bin, a reserved opening is provided in the middle of the heating plate, evenly distributed preset holes are opened at the bottom of the medicine distribution bin, and the medicine distribution bin is fixedly connected to the upper part of the outer periphery of the rotating shaft.

[0005] Preferably, a lower barrel body is arranged at the bottom of the upper barrel body, a base frame is fixedly connected to the lower outer periphery of the lower barrel body, a drain pipe is arranged inside the base frame, the drain pipe is installed in the middle of the bottom end of the lower barrel body, and a valve body is installed at one end of the drain pipe.

[0006] Preferably, an inner barrel is provided inside the upper barrel body, a vertical barrel is mounted on the middle part of the inner barrel via a fixing frame, a uniformly distributed limiting strip is fixedly connected to the middle part of the inner side wall of the vertical barrel, and a threaded part is provided on the middle part of the rotating shaft.

[0007] Preferably, a slide plate is threadedly connected to the middle of the threaded portion, and the slide plate is slidably connected to the inside of the vertical barrel through a limit bar. The threaded portion is arranged on the inner side of the vertical barrel, and evenly distributed through holes are opened on the upper and lower parts of the vertical barrel.

[0008] Preferably, the lower part of the outer circumference of the inner cylinder is provided with evenly distributed openings, filter screens are installed inside the openings, a water filter cavity is provided outside the inner cylinder, a plurality of sewage outlets are provided at the bottom of the sewage outlets, and valve bodies are provided inside the sewage outlets.

[0009] Preferably, an adsorption cylinder is installed at the upper inner part of the lower barrel body, a water inlet is provided at the upper inner part of the adsorption cylinder, a water outlet is provided at the lower inner part of the adsorption cylinder, the water outlet is provided inside the lower barrel body, the water inlet is provided at the lower inner part of the inner cylinder, and filtering particles and adsorption particles are provided inside the adsorption cylinder.

[0010] Preferably, a base is installed at the bottom of the lower barrel body, and evenly distributed heating pipes are installed on the top of the base, and the heating pipes surround the outside of the adsorption cylinder.

[0011] Preferably, a plurality of stirring racks are fixedly connected to the lower portion of the outer circumference of the rotating shaft, stirring rods are fixedly connected to the inner sides of the stirring racks, and the adsorption cylinders are arranged on the upper portion of the outer side of the adsorption cylinders.

[0012] Preferably, water inlets are installed on the upper parts of both sides of the upper barrel body, and a control panel is installed on the front side of the upper barrel body. The control panel is electrically connected to the servo motor, the heating plate and the base.

[0013] Preferably, a method for treating heavy metal wastewater comprises the following steps:

[0014] S1. Sewage enters the water filter cavity in the upper barrel through the water inlet, and enters the inner barrel through the opening at the bottom of the inner barrel. The filter installed in the opening can filter the particulate impurities in the sewage, and the filtered sewage enters the inner barrel;

[0015] S2. When treating sewage, people can start the servo motor through the control panel, and the servo motor can drive the shaft to rotate. When sewage enters, people can add treatment chemicals into the sewage treatment barrel through the drug inlet pipe;

[0016] S3. The stirring rack fixed at the lower part of the outer periphery of the rotating shaft can stir the sewage inside the inner cylinder to fully mix the sewage and the treatment agent, so that the agent can take effect more quickly. The stirring rod inside the stirring rack can form a turbulent flow at the moving track of the stirring rod during the rapid relative movement with the sewage according to the Bernoulli effect. At the same time, the continuously rotating stirring rack can divide the turbulent flow formed in the front to mix the sewage and the treatment agent.

[0017] S4. During the rotation of the shaft, under the action of the limit strip inside the vertical barrel, the slide plate can be driven to slide up and down inside the vertical barrel through the threaded portion on the shaft. When the slide plate moves up and down inside the vertical barrel, it will force the water inside the vertical barrel to be discharged outward. When the water inside the vertical barrel is discharged outward through the through hole, jets will be formed to impact the upper and lower parts of the inner cylinder, thereby preventing metal impurities from remaining on the inner wall of the sewage treatment barrel and being unable to flow back.

[0018] S5. After being treated and purified by the chemical, the sewage will enter the adsorption cylinder through the water inlet on the adsorption cylinder, and the adsorption material inside the adsorption cylinder can further filter and adsorb the purified sewage;

[0019] S6. After passing through the adsorption cylinder, the sewage will be discharged through the water outlet and enter the lower barrel body. The heating pipe inside the lower barrel body can heat, disinfect and purify the water, so that the discharged water can meet the emission standards.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. During the rotation of the shaft, under the action of the limit strip inside the vertical barrel, the slide plate can be driven to slide up and down inside the vertical barrel through the threaded part on the shaft. When the slide plate moves up and down inside the vertical barrel, it will compress the water flow inside the vertical barrel to be discharged outward. When the water inside the vertical barrel is discharged outward through the through hole, jets will be formed. When the slide plate moves downward, the downward jet will impact the lower part of the inner cylinder to prevent the precipitated metal impurities from being solidified inside the inner cylinder and difficult to clean. At the same time, the filter screen can be backwashed to prevent the filter screen from being blocked and affecting the entry of sewage. When the slide plate moves upward, the upward jet will impact the upper part of the inner cylinder to prevent some treatment agents from being spilled on the inner wall of the inner cylinder without contacting the sewage. At the same time, it can prevent the sewage from being stirred and splashing upward, and metal impurities from remaining on the upper wall of the sewage treatment barrel and unable to flow back, which is beneficial to the actual application in sewage treatment work.

[0022] 2. When sewage enters, people can add treatment agents into the sewage treatment barrel through the drug inlet pipe. After the agent enters the drug inlet cavity through the drug inlet pipe, it will fall into the drug distribution bin through the opening. The rotating shaft can drive the drug distribution bin to rotate synchronously, thereby increasing the distribution area of ​​the treatment agent through the centrifugal force during rotation, so that the agent can combine with the sewage faster. The heating plate inside the drug distribution bin can heat the treatment agent flowing through, and then the agent can be exported through the preset hole at the bottom of the drug distribution bin and spread into the sewage to achieve sewage treatment. By heating the treatment agent, when the treatment agent comes into contact with the sewage, the thermal motion of the molecules can effectively increase the combination rate of the treatment agent and the sewage, which is beneficial to increase the sewage treatment speed.

[0023] 3. The stirring rack fixed at the lower part of the outer periphery of the rotating shaft can stir the sewage inside the inner cylinder to fully mix the sewage and the treatment agent, so that the effectiveness of the agent can be exerted more quickly. The stirring rod on the inner side of the stirring rack can form a turbulent flow at the moving trajectory of the stirring rod during the rapid relative movement with the sewage according to the Bernoulli effect. At the same time, the continuous rotating stirring rack can divide the turbulent flow formed in the front, further improving the disorder and uncertainty of the water flow inside the inner cylinder, thereby effectively improving the mixing effect of the sewage and the treatment agent. At the same time, the stirring rod and the middle section of the stirring rack are inclined, which can form an overall downward vortex inside the inner cylinder, thereby effectively improving the polymerization precipitation effect of heavy metals precipitated in the sewage.

[0024] 4. After being treated and purified by chemicals, the sewage will enter the adsorption cylinder through the water inlet on the adsorption cylinder. The adsorption material inside the adsorption cylinder can further filter and adsorb the purified sewage. After passing through the adsorption cylinder, the sewage will be discharged through the water outlet and enter the lower barrel. The heating pipe inside the lower barrel can heat and disinfect the water. By first settling and then filtering, and then chemically separating and filtering and adsorbing, and then heating and disinfecting the water when it is discharged, multi-stage treatment of sewage can be achieved, so that the discharged water can meet the emission standards, achieve full protection and recycling of water resources, and reduce pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view three-dimensional structural schematic diagram of a heavy metal wastewater treatment device and method of the present invention;

[0026] Figure 2 It is a front view schematic diagram of the internal structure of a heavy metal wastewater treatment device and method of the present invention;

[0027] Figure 3 It is a front view of the partial structure of the upper barrel and the lower barrel of a heavy metal wastewater treatment device and method of the present invention;

[0028] Figure 4 It is a bottom view of the partial structure of the upper barrel and the lower barrel of a heavy metal wastewater treatment device and method of the present invention;

[0029] Figure 5 It is a partial structural schematic diagram of an adsorption cylinder of a heavy metal wastewater treatment device and method of the present invention;

[0030] Figure 6 It is a partial structural schematic diagram of a drug dispensing bin of a heavy metal wastewater treatment device and method of the present invention;

[0031] Figure 7 The present invention is a partial structural schematic diagram of a barrel of a heavy metal wastewater treatment device and method.

[0032] 1. Sewage treatment barrel; 101. Upper barrel body; 102. Lower barrel body; 103. Servo motor; 104. Drug inlet pipe; 105. Water inlet; 106. Control panel; 107. Base frame; 108. Drain pipe; 109. Filter screen; 110. Inner barrel; 111. Drug distribution bin; 112. Drug inlet chamber; 113. Limit strip; 114. Heating tube; 115. Adsorption cylinder; 116. Water outlet; 117. Base; 118. Stirring rod; 119. Stirring frame; 120. Water filter chamber; 121. Fixed frame; 122. Water inlet; 123. Through hole; 124. Vertical barrel; 125. Through port; 126. Limit ring; 127. Slide plate; 128. Threaded part; 129. Rotating shaft; 130. Opening. DETAILED DESCRIPTION

[0033] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0034] like Figure 1-Figure 7The heavy metal sewage treatment equipment shown in the figure includes a sewage treatment barrel 1, which includes an upper barrel body 101, a medicine feeding chamber 112 is fixedly connected to the middle of the top of the upper barrel body 101, a servo motor 103 is installed on the top of the medicine feeding chamber 112, a rotating shaft 129 is fixedly connected to the bottom driving end of the servo motor 103, a medicine feeding pipe 104 is fixedly connected to the middle of one side of the medicine feeding chamber 112, a through hole 125 is arranged at the bottom of the medicine feeding chamber 112, the through hole 125 passes through the inner middle of the top of the upper barrel body 101, and a limiting ring is fixedly connected to the top of the upper barrel body 101. 126, the limiting ring 126 is rotatably connected with a medicine dispensing bin 111 inside, a heating plate is installed in the middle of the medicine dispensing bin 111, a reserved opening is provided in the middle of the heating plate, and evenly distributed preset holes are opened at the bottom of the medicine dispensing bin 111, the medicine dispensing bin 111 is fixedly connected to the upper part of the outer periphery of the rotating shaft 129, and evenly distributed openings 130 are opened at the lower part of the outer periphery of the inner cylinder 110, and filters 109 are installed inside the openings 130, and a water filter chamber 120 is provided outside the inner cylinder 110, and a plurality of sewage outlets are provided at the bottom of the water filter chamber 120, and valve bodies are provided inside the sewage outlets;

[0035] Furthermore, in a specific implementation, sewage enters the water filter cavity 120 in the upper barrel body 101 through the water inlet 105, and enters the inner cylinder 110 through the opening 130 at the bottom of the inner cylinder 110. The filter screen 109 installed in the opening 130 can filter the particulate impurities in the sewage, and the filtered sewage enters the inner cylinder 110. When treating the sewage, people can start the servo motor 103 through the control panel 106, and the operation of the servo motor 103 can drive the rotating shaft 129 to rotate. When sewage enters, people can add treatment agents to the sewage treatment barrel 1 through the drug inlet pipe 104. The specific agent can be selected according to the actual content of heavy metals. The agent passes through the inlet pipe 104. After the medicine tube 104 enters the medicine inlet chamber 112, it will fall into the medicine distribution bin 111 through the opening 125. The rotating shaft 129 can drive the medicine distribution bin 111 to rotate synchronously, so that the centrifugal force during rotation can be used to increase the distribution area of ​​the treatment agent, so that the agent can combine with the sewage faster. The heating plate inside the medicine distribution bin 111 can heat the treatment agent flowing through it, and then the agent can be discharged through the preset hole at the bottom of the medicine distribution bin 111 and spread into the sewage to achieve sewage treatment. By heating the treatment agent, when the treatment agent comes into contact with the sewage, the thermal motion of the molecules can effectively increase the combination rate of the treatment agent and the sewage, which is beneficial to increasing the sewage treatment speed.

[0036] Among them, the lower barrel body 102 is arranged at the bottom of the upper barrel body 101, the lower part of the outer periphery of the lower barrel body 102 is fixedly connected with a bottom frame 107, a drain pipe 108 is arranged inside the bottom frame 107, the drain pipe 108 is installed in the middle of the bottom end of the lower barrel body 102, a valve body is installed at one end of the drain pipe 108, a plurality of stirring racks 119 are fixedly connected to the lower part of the outer periphery of the rotating shaft 129, stirring rods 118 are fixedly connected to the inner sides of the stirring racks 119, and the adsorption cylinders 115 are arranged on the upper part of the outer side of the adsorption cylinder 115;

[0037] Furthermore, in a specific implementation, the stirring frame 119 fixed at the lower part of the outer periphery of the rotating shaft 129 can stir the sewage inside the inner drum 110 to fully mix the sewage and the treatment agent, so that the effectiveness of the agent can be exerted more quickly. The stirring rod 118 inside the stirring frame 119 can form a turbulent flow at the moving trajectory of the stirring rod 118 in the process of rapid relative movement with the sewage according to the Bernoulli effect. At the same time, the continuously rotating stirring frame 119 can divide the turbulent flow formed in the front, further improving the disorder and uncertainty of the water flow inside the inner drum 110, thereby effectively improving the mixing effect of the sewage and the treatment agent, which is beneficial to actual use. At the same time, the stirring rod 118 and the middle section of the stirring frame 119 are inclined, which can form an overall downward vortex inside the inner drum 110, thereby effectively improving the polymerization precipitation effect of heavy metals precipitated in the sewage, which is beneficial to actual use.

[0038] Among them, an inner barrel 110 is arranged inside the upper barrel body 101, a vertical barrel 124 is installed in the middle of the inner barrel 110 through a fixing frame 121, a uniformly distributed limiting strip 113 is fixedly connected to the middle of the inner side wall of the vertical barrel 124, a threaded portion 128 is arranged in the middle of the rotating shaft 129, a slide plate 127 is threadedly connected to the middle of the threaded portion 128, the slide plate 127 is slidably connected to the inside of the vertical barrel 124 through the limiting strip 113, the threaded portion 128 is arranged on the inner side of the vertical barrel 124, and the upper and lower parts of the vertical barrel 124 are opened with uniformly distributed through holes 123;

[0039] Furthermore, in a specific implementation, during the rotation of the shaft 129, under the action of the limiting strip 113 inside the vertical barrel 124, the threaded portion 128 on the shaft 129 can drive the slide plate 127 to slide up and down inside the vertical barrel 124. When the slide plate 127 moves up and down inside the vertical barrel 124, it will force the water inside the vertical barrel 124 to be discharged outward. When the water inside the vertical barrel 124 is discharged outward through the through hole 123, jets will be formed. When the slide plate 127 moves downward, the downward jet will impact the lower part of the inner cylinder 110. , to prevent the precipitated metal impurities from solidifying inside the inner cylinder 110 and being difficult to clean. At the same time, the filter screen 109 can be backwashed to prevent the filter screen 109 from being blocked and affecting the entry of sewage. When the slide plate 127 moves upward, the upward jet will impact the upper part of the inner cylinder 110 to prevent some treatment agents from being spilled on the inner wall of the inner cylinder 110 without contacting the sewage. At the same time, it can prevent the sewage from being stirred and splashing upward, and metal impurities from remaining on the upper wall of the sewage treatment barrel 1 and unable to flow back, which is beneficial to the actual application in sewage treatment work.

[0040] Among them, an adsorption cylinder 115 is installed in the upper part of the lower barrel body 102, a water inlet 122 is arranged on the upper part of the adsorption cylinder 115, a water outlet 116 is arranged at the lower part of the adsorption cylinder 115, the water outlet 116 is arranged inside the lower barrel body 102, the water inlet 122 is arranged at the lower part of the inner cylinder 110, and filtering particles and adsorption particles are arranged inside the adsorption cylinder 115. A base 117 is installed at the bottom of the lower barrel body 102, and evenly distributed heating pipes 114 are installed on the top of the base 117. The heating pipes 114 surround the outside of the adsorption cylinder 115. Water inlets 105 are installed on the upper parts of both sides of the upper barrel body 101, and a control panel 106 is installed on the front side of the upper barrel body 101. The control panel 106 is electrically connected to the servo motor 103, the heating plate and the base 117;

[0041] Furthermore, in the specific implementation, after being treated and purified by the chemical, the sewage will enter the interior of the adsorption cylinder 115 through the water inlet 122 on the adsorption cylinder 115. The adsorption material inside the adsorption cylinder 115 can further filter and adsorb the purified sewage. After passing through the adsorption cylinder 115, the sewage will be discharged through the water outlet 116 and enter the interior of the lower barrel body 102. The heating pipe 114 inside the lower barrel body 102 can heat, disinfect and purify the water, so that the discharged water can meet the emission standards, realize the full protection and recycling of water resources, and reduce pollution to the environment.

[0042] A method for treating heavy metal wastewater comprises the following steps:

[0043] S1. Sewage enters the water filter chamber 120 in the upper barrel 101 through the water inlet 105, and enters the inner cylinder 110 through the opening 130 at the bottom of the inner cylinder 110. The filter 109 installed in the opening 130 can filter the particulate impurities in the sewage, and the filtered sewage enters the inner cylinder 110.

[0044] S2. When treating sewage, people can start the servo motor 103 through the control panel 106. The operation of the servo motor 103 can drive the rotating shaft 129 to rotate. When sewage enters, people can add treatment agents into the sewage treatment barrel 1 through the drug inlet pipe 104.

[0045] S3. The stirring rack 119 fixed at the lower part of the outer periphery of the rotating shaft 129 can stir the sewage inside the inner cylinder 110 to fully mix the sewage and the treatment agent, so that the agent can take effect more quickly. The stirring rod 118 inside the stirring rack 119 can form a turbulent flow at the moving track of the stirring rod 118 during the rapid relative movement with the sewage according to the Bernoulli effect. At the same time, the stirring rack 119 can continuously rotate to divide the turbulent flow formed in the front to mix the sewage and the treatment agent.

[0046] S4. During the rotation of the rotating shaft 129, under the action of the limiting strip 113 inside the vertical barrel 124, the slide plate 127 can be driven to slide up and down inside the vertical barrel 124 through the threaded portion 128 on the rotating shaft 129. When the slide plate 127 moves up and down inside the vertical barrel 124, it will force the water inside the vertical barrel 124 to be discharged outward. When the water inside the vertical barrel 124 is discharged outward through the through hole 123, jets will be formed to impact the upper and lower parts of the inner cylinder 110, so as to avoid the situation where metal impurities remain on the inner wall of the sewage treatment barrel 1 and cannot flow back;

[0047] S5. After being treated and purified by the chemical, the sewage will enter the adsorption cylinder 115 through the water inlet 122 on the adsorption cylinder 115. The adsorption material inside the adsorption cylinder 115 can further filter and adsorb the purified sewage.

[0048] S6. After passing through the adsorption cylinder 115, the sewage will be discharged through the water outlet 116 and enter the lower barrel body 102. The heating pipe 114 inside the lower barrel body 102 can heat, disinfect and purify the water, so that the discharged water can meet the discharge standards.

[0049] Working principle:

[0050] In actual use, sewage enters the water filter cavity 120 in the upper barrel body 101 through the water inlet 105, and enters the inner cylinder 110 through the opening 130 at the bottom of the inner cylinder 110. The filter 109 installed in the opening 130 can filter the particulate impurities in the sewage, and the filtered sewage will enter the inner cylinder 110. When treating the sewage, people can start the servo motor 103 through the control panel 106, and the operation of the servo motor 103 can drive the rotating shaft 129 to rotate. When sewage enters, people can add treatment agents to the sewage treatment barrel 1 through the drug inlet pipe 104. After the agent enters the drug inlet cavity 112 through the drug inlet pipe 104, it will fall into the drug distribution bin 111 through the through port 125. The medicine distributing bin 111 can be driven to rotate synchronously through the rotating shaft 129, so that the spreading area of ​​the treatment agent can be increased through the centrifugal force during rotation, so that the agent can combine with the sewage faster, and the treatment agent flowing through can be heated by the heating plate inside the medicine distributing bin 111, and then the agent can be guided out through the preset hole at the bottom of the medicine distributing bin 111 and spread into the sewage to achieve sewage treatment. By heating the treatment agent, when the treatment agent contacts the sewage, the thermal motion of the molecules can effectively increase the combination rate of the treatment agent and the sewage, which is beneficial to increasing the sewage treatment speed. At the same time, the stirring frame 119 fixed at the lower part of the outer periphery of the rotating shaft 129 can achieve stirring of the sewage inside the inner cylinder 110. The sewage and the treatment agent are fully mixed so that the agent can take effect more quickly. The stirring rod 118 on the inner side of the stirring frame 119 can form a turbulent flow at the moving track of the stirring rod 118 according to the Bernoulli effect during the rapid relative movement with the sewage. At the same time, the continuously rotating stirring frame 119 can divide the turbulent flow formed in the front, further improving the disorder and uncertainty of the water flow inside the inner cylinder 110, thereby effectively improving the mixing effect of the sewage and the treatment agent, which is beneficial to practical use. At the same time, the stirring rod 118 and the middle section of the stirring frame 119 are inclined, which can form an overall downward vortex inside the inner cylinder 110, thereby effectively improving the polymerization precipitation effect of heavy metals precipitated in the sewage, which is beneficial to In actual use, during the rotation of the shaft 129, under the action of the limiting strip 113 inside the vertical barrel 124, the threaded portion 128 on the shaft 129 can drive the slide plate 127 to slide up and down inside the vertical barrel 124. When the slide plate 127 moves up and down inside the vertical barrel 124, it will force the water inside the vertical barrel 124 to be discharged outward. When the water inside the vertical barrel 124 is discharged outward through the through hole 123, jets will be formed. When the slide plate 127 moves downward, the downward jet will impact the lower part of the inner cylinder 110 to prevent the precipitated metal impurities from being solidified inside the inner cylinder 110 and being difficult to clean. At the same time, the filter screen 109 can be backwashed to prevent the filter screen 109 from being blocked and affecting the entry of sewage. When the slide plate 127 moves upward,The upward jet will impact the upper part of the inner cylinder 110, preventing some of the treatment agents from being spilled onto the inner wall of the inner cylinder 110 without contacting the sewage. At the same time, it can prevent the sewage from being stirred and splashing upward, and metal impurities from remaining on the upper wall of the sewage treatment barrel 1 and unable to flow back, which is beneficial to the actual application of sewage treatment work. After being treated and purified by the agent, the sewage will enter the adsorption cylinder 115 through the water inlet 122 on the adsorption cylinder 115. The adsorption material inside the adsorption cylinder 115 can further filter and adsorb the purified sewage. After passing through the adsorption cylinder 115, the sewage will be discharged through the water outlet 116 and enter the lower barrel 102. The heating pipe 114 inside the lower barrel 102 can achieve heating, disinfection and purification of the water, so that the discharged water can meet the discharge standards, achieve full protection and recycling of water resources, and reduce pollution to the environment.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A heavy metal wastewater treatment device, comprising a wastewater treatment tank (1), characterized in that: The sewage treatment barrel (1) comprises an upper barrel body (101), a medicine feeding chamber (112) is fixedly connected to the middle of the top of the upper barrel body (101), a servo motor (103) is installed on the top of the medicine feeding chamber (112), a rotating shaft (129) is fixedly connected to the bottom driving end of the servo motor (103), a medicine feeding pipe (104) is fixedly connected to the middle of one side of the medicine feeding chamber (112), and a through opening (125) is arranged at the bottom of the medicine feeding chamber (112), and the through opening (125) penetrates the middle part of the top of the upper barrel body (101), a limiting ring (126) is fixedly connected to the top of the upper barrel body (101), a medicine dispensing bin (111) is rotatably connected inside the limiting ring (126), a heating plate is installed in the middle of the medicine dispensing bin (111), a reserved opening is provided in the middle of the heating plate, evenly distributed preset holes are opened at the bottom of the medicine dispensing bin (111), and the medicine dispensing bin (111) is fixedly connected to the upper part of the outer periphery of the rotating shaft (129).

2. A heavy metal wastewater treatment equipment according to claim 1, characterized in that: A lower barrel body (102) is arranged at the bottom of the upper barrel body (101); a bottom frame (107) is fixedly connected to the lower periphery of the lower barrel body (102); a drain pipe (108) is arranged inside the bottom frame (107); the drain pipe (108) is installed at the middle of the bottom end of the lower barrel body (102); and a valve body is installed at one end of the drain pipe (108).

3. A heavy metal wastewater treatment equipment according to claim 1, characterized in that: An inner barrel (110) is arranged inside the upper barrel body (101), a vertical barrel (124) is installed in the middle of the inner barrel (110) through a fixing frame (121), a uniformly distributed limiting strip (113) is fixedly connected to the middle of the inner side wall of the vertical barrel (124), and a threaded portion (128) is arranged in the middle of the rotating shaft (129).

4. A heavy metal wastewater treatment equipment according to claim 3, characterized in that: A slide plate (127) is threadedly connected to the middle of the threaded portion (128); the slide plate (127) is slidably connected to the inside of the vertical barrel (124) through a limiting strip (113); the threaded portion (128) is arranged on the inner side of the vertical barrel (124); and evenly distributed through holes (123) are provided at the upper and lower parts of the vertical barrel (124).

5. A heavy metal wastewater treatment equipment according to claim 4, characterized in that: The lower part of the outer circumference of the inner cylinder (110) is provided with evenly distributed openings (130), and filter screens (109) are installed inside the openings (130). A water filter chamber (120) is provided outside the inner cylinder (110), and a plurality of sewage outlets are provided at the bottom of the sewage outlets, and valve bodies are provided inside the sewage outlets.

6. A heavy metal wastewater treatment equipment according to claim 2, characterized in that: An adsorption cylinder (115) is installed at the upper inner portion of the lower barrel body (102); a water inlet (122) is arranged at the upper inner portion of the adsorption cylinder (115); a water outlet (116) is arranged at the lower inner portion of the adsorption cylinder (115); the water outlet (116) is arranged inside the lower barrel body (102); the water inlet (122) is arranged at the lower inner portion of the inner cylinder (110); and filtering particles and adsorption particles are arranged inside the adsorption cylinder (115).

7. A heavy metal wastewater treatment equipment according to claim 6, characterized in that: A base (117) is installed at the bottom of the lower barrel (102), and evenly distributed heating pipes (114) are installed on the top of the base (117), and the heating pipes (114) surround the outside of the adsorption cylinder (115).

8. A heavy metal wastewater treatment equipment according to claim 7, characterized in that: A plurality of stirring racks (119) are fixedly connected to the lower portion of the outer periphery of the rotating shaft (129), stirring rods (118) are fixedly connected to the inner sides of the stirring racks (119), and the adsorption cylinders (115) are arranged on the upper portion of the outer side of the adsorption cylinders (115).

9. A heavy metal wastewater treatment equipment according to claim 1, characterized in that: Water inlets (105) are installed on the upper parts of both sides of the upper barrel body (101), and a control panel (106) is installed on the front side of the upper barrel body (101). The control panel (106) is electrically connected to the servo motor (103), the heating plate and the base (117).

10. A heavy metal wastewater treatment method, applied to a heavy metal wastewater treatment device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Sewage enters the water filter chamber (120) in the upper barrel (101) through the water inlet (105), and enters the inner cylinder (110) through the opening (130) at the bottom of the inner cylinder (110). The filter (109) installed in the opening (130) can filter particulate impurities in the sewage, and the filtered sewage enters the inner cylinder (110); S2. When treating sewage, people can start the servo motor (103) through the control panel (106), and the operation of the servo motor (103) can drive the rotating shaft (129) to rotate. When sewage enters, people can add treatment chemicals into the sewage treatment barrel (1) through the drug inlet pipe (104); S3. The stirring rack (119) fixed at the lower part of the outer periphery of the rotating shaft (129) can stir the sewage inside the inner cylinder (110) to fully mix the sewage and the treatment agent, so that the agent can take effect more quickly. The stirring rod (118) inside the stirring rack (119) can form a turbulent flow at the moving track of the stirring rod (118) in the process of rapid relative movement with the sewage according to the Bernoulli effect. At the same time, the turbulent flow formed in the front can be divided by the continuously rotating stirring rack (119), so that the sewage and the treatment agent are mixed; S4. During the rotation of the rotating shaft (129), under the action of the limiting strip (113) inside the vertical barrel (124), the threaded portion (128) on the rotating shaft (129) can drive the slide plate (127) to slide up and down inside the vertical barrel (124). When the slide plate (127) moves up and down inside the vertical barrel (124), it will force the water inside the vertical barrel (124) to be discharged outward. When the water inside the vertical barrel (124) is discharged outward through the through hole (123), jets will be formed to impact the upper and lower parts of the inner cylinder (110), thereby preventing metal impurities from remaining on the inner wall of the sewage treatment barrel (1) and being unable to flow back. S5. After being treated and purified by the chemical, the sewage enters the adsorption cylinder (115) through the water inlet (122) on the adsorption cylinder (115), and the adsorption material inside the adsorption cylinder (115) can further filter and adsorb the purified sewage; S6. After passing through the adsorption cylinder (115), the sewage is discharged through the water outlet (116) and enters the lower barrel body (102). The heating pipe (114) inside the lower barrel body (102) can heat, disinfect and purify the water, so that the discharged water can meet the discharge standards.

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