Waste liquid and residue separation device and process for wood pulp production

Abstract

The invention relates to the field of wood pulp waste liquid separation equipment, in particular to a waste liquid and residue separation device and process for wood pulp production. The waste liquid and residue separation device comprises a wood pulp waste liquid separation barrel, the wood pulp waste liquid separation barrel comprises a barrel body, the upper portion in the barrel body is fixedly connected with a residue guide frame, the residue guide frame is arranged to be in an inclined state, and an opening is formed in the upper portion of one side of the barrel body; a port is formed in the middle of the top end of the residue guide frame, an inner barrel is rotationally connected to the middle in the barrel body, an outer barrel is rotationally connected to the periphery of the inner barrel, a rotating shaft is arranged on the inner side of the inner barrel, a stirring frame is fixedly connected to the lower portion of the periphery of the rotating shaft, and the stirring frame is arranged on the inner side of the inner barrel; according to the centrifugal separation device disclosed by the invention, in the rotating process of the inner cylinder, water sprayed by the spraying disc can be used for carrying out back flushing on the contacted screen mesh, so that a large amount of residues can be prevented from being attached to the screen mesh during centrifugal separation.

Description

Technical Field

[0001] The invention relates to the field of wood pulp waste liquid separation equipment, and in particular to a waste liquid residue separation device and process for wood pulp production. Background Art

[0002] Wood pulp is pulp made from wood as raw material. It is classified according to pulping materials, pulping methods and pulp uses, such as kraft coniferous pulp, mechanical pulp, refined pulp, etc. Wood pulp is the main type of pulp, accounting for more than 90% of the total pulp volume. Wood pulp is not only used for papermaking, but also widely used in other industrial sectors. In the process of wood pulp production, a large amount of waste liquid is generated. The waste liquid contains a large amount of residue, which not only pollutes the environment but also causes trouble in the subsequent treatment of the waste liquid. Therefore, it is necessary to separate the waste liquid and residue of wood pulp. However, the existing separation device often only centrifuges through a rotating drum to separate the waste liquid and residue. During centrifugation, the residue will adhere to the rotating drum and stick to the separation screen, which will lead to poor subsequent separation effect. At the same time, the separated residue often still absorbs a certain amount of water. This part of the liquid is often lost with the residue, which is not conducive to water resource recovery and purification. Therefore, we propose a waste liquid and residue separation device and process for wood pulp production 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 waste liquid residue separation device and process for wood pulp production.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a waste liquid residue separation device for wood pulp production, comprising a wood pulp waste liquid separation barrel, the wood pulp waste liquid separation barrel comprising a barrel body, a slag guide frame fixedly connected to the upper inner part of the barrel body, the slag guide frame is arranged in an inclined state, an opening is provided at the upper part of one side of the barrel body, the lower end of the slag guide frame faces the opening, a port is provided at the middle part of the top of the slag guide frame, an inner cylinder is rotatably connected to the middle part of the barrel body, an outer cylinder is rotatably connected to the outer periphery of the inner cylinder, a rotating shaft is arranged on the inner side of the inner cylinder, a stirring frame is fixedly connected to the lower outer periphery of the rotating shaft, the stirring frame is arranged on the inner side of the inner cylinder, an electromagnet is fixedly connected to the bottom of the rotating shaft, the electromagnet is rotatably connected to the inner bottom of the inner cylinder, and a uniformly distributed screen is installed in the middle part of the inner cylinder.

[0005] Preferably, an end cover is installed on the top of the barrel body, a servo motor is installed in the middle of the top of the end cover, the bottom driving end of the servo motor is fixedly connected to the top of the rotating shaft, a liquid inlet pipe is fixedly connected to one side of the top of the end cover, and the outlet of the liquid inlet pipe is facing the top port of the slag guide frame.

[0006] Preferably, a plurality of upper slag barrels are arranged on the inner side of the inner barrel, an entrance is opened on one side of the upper slag barrel, the entrances of the upper slag barrels are all facing the side wall of the inner barrel, a rotating shaft is arranged inside the upper slag barrel, a feeding auger is fixedly connected to the lower part of the outer periphery of the rotating shaft, and the feeding auger is arranged inside the upper slag barrel.

[0007] Preferably, the top of the upper slag cylinder is fixedly connected to a straight cylinder, the top of the straight cylinder is fixedly connected to a top frame, a rotating shaft passes through the middle of the top frame, the rotating shaft is rotatably connected to the top frame, the top of the straight cylinder passes through a slag guide frame, and the top of the straight cylinder is fixedly connected to the slag guide frame.

[0008] Preferably, a driving gear is fixedly connected to the upper part of the outer periphery of the rotating shaft, and a plurality of driven gears are meshingly connected to the outer periphery of the driving gear. A fixed bin is provided on one side of the straight cylinder, and the fixed bin is installed on the upper inner part of the barrel body. Fan blades are rotatably connected inside the fixed bin, and the side of the driven gear away from the driving gear is connected to the transmission shaft in the middle of the fan blade through a transmission assembly. The transmission assembly is arranged on the upper part of the fixed bin and the driven gear, and the fixed bin is arranged on the upper part of the slag guide frame.

[0009] Preferably, through openings are provided on the inner and outer sides of the barrel body, a water outlet pipe is installed on one side of the bottom of the through opening, the outer periphery of the inner cylinder is rotatably connected to the outer cylinder, a plurality of control chambers are installed on the outer periphery of the outer cylinder, a pump body is installed inside the control chambers, the pump body input end is provided inside the through opening, a spray disc is installed on the pump body output end, and evenly distributed through openings are opened in the middle of the outer cylinder.

[0010] Preferably, a side bin is installed on one side of the barrel body, a fixed frame is installed on one side of the top of the side bin, a loading conveyor belt is arranged on the inner side of the fixed frame, and the outer periphery of the loading conveyor belt is fixedly connected with evenly distributed lifting plates, and a plurality of clips are fixedly connected to both inner parts of the fixed frame, a reduction motor is installed on one side of the fixed frame, and the upper driving part of the loading conveyor belt is fixedly connected to the driving end of the reduction motor.

[0011] Preferably, a filter plate is installed in the upper part of the side bin, and the filter plate is set in an inclined state. The upper part of the side bin is connected with the upper part of the barrel body through an opening, and the lower part of the side bin is connected with the inside of the outer bin through a connecting pipe.

[0012] Preferably, a base is installed at the bottom of the outer periphery of the barrel body, and a control panel is installed at the front periphery of the barrel body. The control panel is electrically connected to the electromagnet, the pump body, the servo motor and the reduction motor.

[0013] Preferably, a process for separating waste liquid and residue from wood pulp production comprises the following steps: S1. In actual use, people introduce the wood pulp waste liquid after production into the barrel through the liquid inlet pipe, and then introduce the pulp waste liquid into the inner barrel through the liquid inlet pipe. After the wood pulp waste liquid is introduced, the flocculation agent is introduced into the wood pulp waste liquid through the liquid inlet pipe, and the suspended impurities and fine fibers in the wood pulp waste liquid are precipitated and flocculated by the flocculation agent; S2. After the flocculating agent is added, people start the servo motor through the control panel, and the servo motor drives the rotating shaft to rotate. The rotation of the rotating shaft effectively accelerates the full mixing of the flocculating agent and the wood pulp waste liquid, thereby accelerating the reaction rate; S3. When the flocculation process is completed, the electromagnet is started to connect the rotating shaft with the inner cylinder, so that the rotating shaft drives the inner cylinder to rotate synchronously. At this time, the wood pulp waste liquid in the inner cylinder will pass through the screen and the opening under the action of centrifugal force and fall into the outer bin. The residue in the wood pulp waste liquid is blocked by the screen, and the wood pulp waste liquid and the precipitated residue are separated. The discharged waste liquid will be discharged through the drainage pipe at the bottom of the outer bin; S4. During the centrifugal separation of the wood pulp waste liquid and the residue, people start the pump body inside the control chamber at a fixed time through the control panel, and extract part of the waste liquid inside the outer chamber through the pump body inside the control chamber and spray it out through the spray plate. During the rotation of the inner cylinder, the water sprayed by the spray plate backwashes the screen that it contacts, thereby avoiding a large amount of residue attached to the screen during centrifugal separation, which affects the separation effect of the screen; S5. During the backwashing process of the screen, since the entrance on one side of the upper slag barrel corresponds to the spray disc, the backwashed residue will fall into the upper slag barrel. At the same time, the driving gear fixed on the outer periphery of the rotating shaft drives the driven gear meshing with it to rotate, thereby driving the rotating shaft fixed with the driven gear to rotate synchronously. Through the rotation of the rotating shaft, the residue inside the upper slag barrel is transported upward by the feeding auger, so as to realize the extraction of the residue inside the inner barrel, and avoid the accumulation of residues during continuous separation, which affects the subsequent separation effect; S6. The residue is transported upward to the straight cylinder through the feeding auger and discharged through the top of the straight cylinder. The discharged residue will fall to the top of the slag guide frame. The inclined setting of the slag guide frame will guide the residue to one side, so that the residue will enter the inside of the side bin through the opening. The waste liquid in the residue is fully intercepted through the hydrophobic holes on the feeding auger. After entering the inside of the side bin, the residue will fall onto the filter plate, and the residue will be further filtered and separated through the filter plate. The waste liquid in the residue will drip by standing still, and sedimentation and separation work will be carried out; S7. At this time, people start the reduction motor through the control panel, and the reduction motor drives the feeding conveyor belt to rotate. Through the rotation of the feeding conveyor belt, the residue on the filter plate is picked up and discharged by the lifting plate. When the lifting plate containing the residue is driven to the upper part, the edge of the lifting plate will encounter the card bar, and the lifting plate will be initially blocked by the card bar. The collision between the two will cause the lifting plate to vibrate, thereby shaking off the residue on the lifting plate, and the waste liquid at the bottom of the side bin will flow back to the inside of the outer bin through the connecting pipe, realizing separation and diversion; S8. During the process of conveying residues by the feeding auger, when the driven gear rotates, it will drive the transmission shaft in the middle of the fan blades to rotate through the transmission assembly, thereby driving the fan blades to rotate. When the fan blades rotate, they will disturb the gas to form a downward airflow. When the airflow goes downward, it will contact the slag guide frame. Due to the inclination of the slag guide frame and the guidance of the curved surface, the airflow will be discharged from the opening along the top surface of the slag guide frame, and the discharge of the residue on the top of the slag guide frame will be effectively accelerated through the airflow to prevent the residue from being retained on the slag guide frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects: In the process of centrifugal separation of wood pulp waste liquid and residue, people can start the pump body inside the control chamber at a fixed time through the control panel, and the pump body inside the control chamber can extract part of the waste liquid inside the outer chamber and spray it out through the spray plate. During the rotation of the inner cylinder, the water sprayed by the spray plate can backwash the contacted screen, thereby avoiding a large amount of residue attached to the screen during centrifugal separation, resulting in the separation effect of the screen being affected, which is beneficial to the long-term separation work of the screen.

[0015] During the recoil of the screen, since the entrance on one side of the upper slag barrel corresponds to the spray disc, the recoiled residue will fall into the upper slag barrel. At the same time, the driving gear fixed on the outer periphery of the rotating shaft can drive the driven gear meshing with it to rotate, thereby driving the rotating shaft fixed with the driven gear to rotate synchronously. The residue in the upper slag barrel can be transported upward by the feeding auger through the rotation of the rotating shaft, so as to realize the extraction of the residue in the inner barrel, avoid the accumulation of residue during continuous separation, and affect the subsequent separation effect, which is beneficial to practical use.

[0016] The residue can be transported upward to the straight barrel part through the feeding auger and discharged through the top of the straight barrel. The discharged residue will fall to the top of the slag guide frame, and the residue will be guided to one side through the inclined setting of the slag guide frame, so that the residue will enter the side bin through the opening. The hydrophobic holes on the feeding auger can fully intercept the waste liquid in the residue during the transportation process, which is beneficial to improve the separation effect of wood pulp waste liquid and residue. After entering the side bin, the residue will fall onto the filter plate, and the filter plate can achieve further filtration and separation of the residue. The waste liquid in the residue can be easily dripped by standing still. The inclined setting of the filter plate can be conducive to the concentrated accumulation of the residue, which is convenient for deposition and separation.

[0017] At this time, people can start the reduction motor through the control panel, and the reduction motor can drive the feeding conveyor belt to rotate. The rotation of the feeding conveyor belt can use the lifting plate to pick up and discharge the residue on the filter plate. When the lifting plate containing the residue is driven to the upper part, the edge of the lifting plate will encounter the card bar, and the lifting plate will be initially blocked by the card bar. The collision between the two will cause the lifting plate to vibrate, thereby shaking off the residue on the lifting plate, and the waste liquid at the bottom of the side bin will flow back to the outer bin through the connecting pipe, realizing separation and diversion, which is beneficial to practical use.

[0018] During the process of conveying residue by the feeding auger, when the driven gear rotates, it will drive the transmission shaft in the middle of the fan blade to rotate through the transmission assembly, thereby driving the fan blade to rotate. When the fan blade rotates, it will disturb the gas to form a downward airflow. The airflow will contact the slag guide frame when it goes downward. Due to the inclination of the slag guide frame and the guidance of the curved surface, the airflow will be able to be discharged from the opening along the top surface of the slag guide frame. The airflow can effectively speed up the discharge of the residue on the top of the slag guide frame to prevent the residue from being trapped on the slag guide frame and affecting subsequent use, which is beneficial to the long-term separation work of the wood pulp waste liquid separation barrel. At the same time, the airflow will enter the side bin through the opening, and the influx of airflow will impact the residue on the filter plate inside the side bin, thereby effectively speeding up the separation process of the residue on the filter plate and the waste liquid mixed thereon. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the front view of a three-dimensional structure of a waste liquid residue separation device and process for wood pulp production according to the present invention; Figure 2 It is a schematic diagram of the partial structure in the side bin of a waste liquid and residue separation device and process for wood pulp production according to the present invention; Figure 3 It is a schematic diagram of the partial structure in the side bin of a waste liquid and residue separation device and process for wood pulp production according to the present invention; Figure 4 It is a schematic diagram of the top structure of the slag guide frame of a waste liquid and residue separation device and process for wood pulp production according to the present invention; Figure 5It is a schematic diagram of the internal structure of the inner cylinder of a waste liquid and residue separation device and process for wood pulp production according to the present invention; Figure 6 It is a partial structural schematic diagram of the outer cylinder and inner cylinder of a waste liquid residue separation device and process for wood pulp production of the present invention; Figure 7 The present invention is a schematic diagram of the partial structure of a stirring frame and an upper slag drum of a waste liquid and residue separation device and process for wood pulp production.

[0020] 1. Wood pulp waste liquid separation barrel; 101. Barrel body; 102. Control panel; 103. Base; 104. Side bin; 105. Fixed frame; 106. End cover; 107. Liquid inlet pipe; 108. Servo motor; 109. Card bar; 110. Lifting plate; 111. Feeding conveyor belt; 112. Opening; 113. Filter plate; 114. Speed ​​reducer; 115. Slag guide frame; 116. Straight cylinder; 117. Control Bin making; 118, through-port; 119, outer bin; 120, fan blades; 121, transmission assembly; 122, driven gear; 123, driving gear; 124, rotating shaft; 125, fixed bin; 126, feeding auger; 127, screen; 128, outer cylinder; 129, stirring frame; 130, rotating shaft; 131, inner cylinder; 132, electromagnet; 133, top frame; 134, spray plate; 135, upper slag cylinder. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figure 1-Figure 7 A waste liquid residue separation device for wood pulp production shown in the figure comprises a wood pulp waste liquid separation barrel 1, the wood pulp waste liquid separation barrel 1 comprises a barrel body 101, a slag guide frame 115 is fixedly connected to the upper inner part of the barrel body 101, the slag guide frame 115 is arranged in an inclined state, an opening 112 is opened at the upper part of one side of the barrel body 101, the lower end of the slag guide frame 115 faces the opening 112, a port is opened at the middle part of the top of the slag guide frame 115, an inner cylinder 131 is rotatably connected to the middle part of the barrel body 101, an outer cylinder 128 is rotatably connected to the outer periphery of the inner cylinder 131, a rotating shaft 130 is arranged on the inner side of the inner cylinder 131, a stirring frame 129 is fixedly connected to the lower outer periphery of the rotating shaft 130, the stirring frame 129 is arranged on the inner side of the inner cylinder 131, an electromagnet 132 is fixedly connected to the bottom of the rotating shaft 130, the electromagnet 132 is rotatably connected to the inner bottom of the inner cylinder 131, and a uniformly distributed screen 127 is installed in the middle of the inner cylinder 131; Furthermore, in the specific implementation, people can introduce the wood pulp waste liquid after production into the barrel body 101 through the liquid inlet pipe 107, and introduce the pulp waste liquid into the inner tube 131 through the liquid inlet pipe 107. After the wood pulp waste liquid is introduced, the flocculant can be introduced into the wood pulp waste liquid through the liquid inlet pipe 107. The flocculant can realize the precipitation and flocculation of suspended impurities and fine fibers in the wood pulp waste liquid, thereby realizing the treatment of the wood pulp waste liquid. After the flocculant is added, people can start the servo motor 108 through the control panel 102, and the operation of the servo motor 108 can drive the rotating shaft 130 to rotate. The rotation of the rotating shaft 130 can effectively accelerate the full mixing of the flocculant and the wood pulp waste liquid, accelerate the reaction rate, and help to improve the separation rate of wood fiber residues in the wood pulp waste liquid.

[0023] Among them, an end cover 106 is installed on the top of the barrel body 101, a servo motor 108 is installed in the middle of the top of the end cover 106, the bottom driving end of the servo motor 108 is fixedly connected to the top of the rotating shaft 130, a liquid inlet pipe 107 is fixedly connected to one side of the top of the end cover 106, and the outlet of the liquid inlet pipe 107 is facing the top port of the slag guide frame 115, a through port 118 is arranged inside and outside the barrel body 101, a water outlet pipe is installed on one side of the bottom of the through port 118, the outer periphery of the inner cylinder 131 is rotatably connected to the outer cylinder 128, a plurality of control chambers 117 are installed on the outer periphery of the outer cylinder 128, a pump body is installed inside the control chamber 117, the pump body input end is arranged inside the through port 118, and a spray disc 134 is installed at the output end of the pump body, and a uniformly distributed through port 118 is opened in the middle of the outer cylinder 128; Furthermore, in the specific implementation, when the flocculation process is completed, people can start the electromagnet 132, and the connection between the rotating shaft 130 and the inner cylinder 131 can be achieved through the operation of the electromagnet 132, so that the inner cylinder 131 can be driven to rotate synchronously through the rotating shaft 130. At this time, the wood pulp waste liquid inside the inner cylinder 131 will pass through the screen 127 and the port 118 under the action of centrifugal force and fall into the outer bin 119. The residue in the wood pulp waste liquid can be blocked by the screen 127, and the wood pulp waste liquid and the precipitated residue can be separated. The discharged waste liquid will be discharged through the drainage at the bottom of the outer bin 119. The waste liquid from the outer chamber 119 is discharged through the pipe. During the centrifugal separation of the wood pulp waste liquid and the residue, people can start the pump body inside the control chamber 117 at a fixed time through the control panel 102. The pump body inside the control chamber 117 can extract part of the waste liquid inside the outer chamber 119 and spray it out through the spray plate 134. During the rotation of the inner cylinder 131, the water sprayed by the spray plate 134 can backwash the screen 127 that it contacts, thereby avoiding a large amount of residue attached to the screen 127 during centrifugal separation, which causes the separation effect of the screen 127 to be affected, and is beneficial to the long-term separation work of the screen 127.

[0024] Among them, multiple upper slag barrels 135 are arranged on the inner side of the inner barrel 131, and an entrance is opened on one side of the upper slag barrel 135, and the entrance of the upper slag barrel 135 faces the side wall of the inner barrel 131. A rotating shaft 124 is arranged inside the upper slag barrel 135, and a feeding auger 126 is fixedly connected to the lower part of the outer periphery of the rotating shaft 124, and the feeding auger 126 is arranged inside the upper slag barrel 135. The top of the upper slag barrel 135 is fixedly connected to a straight barrel 116, and the top of the straight barrel 116 is fixedly connected to a top frame 133, and the middle of the top frame 133 is penetrated by a rotating shaft 124, and the rotating shaft 124 is rotatably connected to the top frame 133, and the top of the straight barrel 116 penetrates the slag guide frame 115. The top of the straight cylinder 116 is fixedly connected to the slag guide frame 115, and a driving gear 123 is fixedly connected to the upper part of the outer periphery of the rotating shaft 130. A plurality of driven gears 122 are meshed and connected to the outer periphery of the driving gear 123. A fixed bin 125 is provided on one side of the straight cylinder 116. The fixed bin 125 is installed on the upper inner part of the barrel body 101. The inside of the fixed bin 125 is rotatably connected to the fan blade 120. The side of the driven gear 122 away from the driving gear 123 is connected to the transmission shaft in the middle of the fan blade 120 through a transmission assembly 121. The transmission assembly 121 is arranged on the upper part of the fixed bin 125 and the driven gear 122, and the fixed bin 125 is arranged on the upper part of the slag guide frame 115. Furthermore, in a specific implementation, during the backwashing process of the screen 127, since the entrance of one side of the upper slag barrel 135 corresponds to the spray disc 134 respectively, the backwashed residue will fall into the upper slag barrel 135. At the same time, the driving gear 123 fixed on the outer periphery of the rotating shaft 130 can drive the driven gear 122 meshing with it to rotate, thereby driving the rotating shaft 124 fixed to the driven gear 122 to rotate synchronously. Through the rotation of the rotating shaft 124, the feeding auger 126 can be used to transport the residue inside the upper slag barrel 135 upward, so as to realize the inner barrel 131. The discharge of internal residue can avoid the accumulation of residue during continuous separation, which may affect the subsequent separation effect, and is beneficial to practical use. The residue can be transported upward to the straight cylinder 116 through the feeding auger 126 and discharged through the top of the straight cylinder 116. The discharged residue will fall to the top of the slag guide frame 115. The inclined setting of the slag guide frame 115 will guide the residue to one side, so that the residue will enter the side bin 104 through the opening 112. The hydrophobic holes on the feeding auger 126 can fully retain the waste liquid in the residue during the transportation process, which is beneficial to improving the separation effect of the wood pulp waste liquid and the residue.

[0025] A side bin 104 is installed on one side of the barrel body 101, a fixing frame 105 is installed on one side of the top of the side bin 104, a feeding conveyor belt 111 is arranged inside the fixing frame 105, and a lifting plate 110 evenly distributed is fixedly connected to the outer periphery of the feeding conveyor belt 111, a plurality of clamping strips 109 are fixedly connected to both inner parts of the fixing frame 105, a reduction motor 114 is installed on one side of the fixing frame 105, and the upper driving part of the feeding conveyor belt 111 is fixedly connected to the driving end of the reduction motor 114. A filter plate 113 is installed in the upper part of the side bin 104, and the filter plate 113 is set in an inclined state. The upper part of the side bin 104 is connected with the upper part of the barrel body 101 through the opening 112, and the lower part of the side bin 104 is connected with the inside of the outer bin 119 through a connecting pipe. A base 103 is installed at the bottom of the outer periphery of the barrel body 101, and a control panel 102 is installed at the front of the outer periphery of the barrel body 101. The control panel 102 is electrically connected to the electromagnet 132, the pump body, the servo motor 108 and the reduction motor 114; Furthermore, in a specific implementation, after the residue enters the side bin 104, it will fall onto the filter plate 113, and the residue can be further filtered and separated by the filter plate 113. The waste liquid in the residue can be easily dripped by standing still, and the inclined setting of the filter plate 113 can be conducive to the concentrated accumulation of the residue, which is convenient for the sedimentation and separation work. At this time, people can start the reduction motor 114 through the control panel 102, and the reduction motor 114 can drive the feeding conveyor belt 111 to rotate, and the feeding conveyor belt 111 can be driven to rotate. The rotation of 1 can use the lifting plate 110 to pick up and discharge the residue on the filter plate 113. When the lifting plate 110 containing the residue is driven to the upper part, the edge of the lifting plate 110 will encounter the clamping bar 109, and the clamping bar 109 will initially block the lifting plate 110. The collision between the two will cause the lifting plate 110 to vibrate, thereby shaking off the residue on the lifting plate 110, and the waste liquid at the bottom of the side bin 104 will flow back to the inside of the outer bin 119 through the connecting pipe, thereby realizing separation and diversion, which is beneficial to practical use.

[0026] Among them, a process for separating waste liquid residue from wood pulp production includes the following steps: S1. In actual use, people introduce the wood pulp waste liquid after production into the barrel body 101 through the liquid inlet pipe 107, and then introduce the pulp waste liquid into the inner tube 131 through the liquid inlet pipe 107. After the wood pulp waste liquid is introduced, the flocculating agent is introduced into the wood pulp waste liquid through the liquid inlet pipe 107, and the suspended impurities and fine fibers in the wood pulp waste liquid are precipitated and flocculated by the flocculating agent; S2. After the flocculating agent is added, the servo motor 108 is started through the control panel 102. The servo motor 108 drives the rotating shaft 130 to rotate. The rotation of the rotating shaft 130 effectively accelerates the full mixing of the flocculating agent and the wood pulp waste liquid, thereby accelerating the reaction rate. S3. When the flocculation process is completed, the electromagnet 132 is started, and the connection between the rotating shaft 130 and the inner cylinder 131 is achieved through the operation of the electromagnet 132, so that the inner cylinder 131 is driven by the rotating shaft 130 to rotate synchronously. At this time, the wood pulp waste liquid in the inner cylinder 131 will pass through the screen 127 and the opening 118 under the action of centrifugal force and fall into the outer bin 119. The residue in the wood pulp waste liquid is blocked by the screen 127, and the wood pulp waste liquid and the precipitated residue are separated. The discharged waste liquid will be discharged through the drainage pipe at the bottom of the outer bin 119; S4. During the centrifugal separation of the wood pulp waste liquid and the residue, the control panel 102 is used to time the pump body inside the control chamber 117, and the pump body inside the control chamber 117 extracts part of the waste liquid inside the outer chamber 119 and sprays it out through the spray plate 134. During the rotation of the inner cylinder 131, the water sprayed by the spray plate 134 backwashes the screen 127 in contact with it, thereby preventing a large amount of residue from being attached to the screen 127 during centrifugal separation, which affects the separation effect of the screen 127. S5. During the backwashing process of the screen 127, since the entrance on one side of the upper slag barrel 135 corresponds to the spray disc 134 respectively, the backwashed residue will fall into the upper slag barrel 135. At the same time, the driving gear 123 fixed on the outer periphery of the rotating shaft 130 drives the driven gear 122 meshing with it to rotate, thereby driving the rotating shaft 124 fixed with the driven gear 122 to rotate synchronously, and the residue inside the upper slag barrel 135 is transported upward by the feeding auger 126 through the rotation of the rotating shaft 124, so as to realize the extraction of the residue inside the inner barrel 131, so as to avoid the accumulation of residues during continuous separation, which may affect the subsequent separation effect; S6, the residue is transported upward to the straight cylinder 116 through the feeding auger 126, and discharged through the top of the straight cylinder 116. The guided residue will fall to the top of the slag guide frame 115. The inclined setting of the slag guide frame 115 will guide the residue to one side, so that the residue will enter the inside of the side bin 104 through the opening 112. The waste liquid in the residue is fully retained through the hydrophobic holes on the feeding auger 126. After entering the inside of the side bin 104, the residue will fall on the filter plate 113, and the residue will be further filtered and separated by the filter plate 113. The waste liquid in the residue will drip by standing still, and sedimentation and separation work will be carried out; S7. At this time, people start the reduction motor 114 through the control panel 102, and the reduction motor 114 drives the feeding conveyor belt 111 to rotate. Through the rotation of the feeding conveyor belt 111, the lifting plate 110 is used to pick up and discharge the residue on the filter plate 113. When the lifting plate 110 containing the residue is driven to the upper part, the edge of the lifting plate 110 will encounter the clamping bar 109, and the clamping bar 109 will initially block the lifting plate 110. The collision between the two will cause the lifting plate 110 to vibrate, thereby shaking off the residue on the lifting plate 110, and the waste liquid at the bottom of the side bin 104 will flow back to the inside of the outer bin 119 through the connecting pipe, so as to achieve separation and diversion; S8. During the process of conveying residues by the feeding auger 126, when the driven gear 122 rotates, it will drive the transmission shaft in the middle of the fan blade 120 to rotate through the transmission assembly 121, thereby driving the fan blade 120 to rotate. When the fan blade 120 rotates, it will disturb the gas to form a downward airflow. When the airflow goes downward, it will contact the slag guide frame 115. Due to the inclination of the slag guide frame 115 and the guidance of the curved surface, the airflow will be led out from the opening 112 along the top surface of the slag guide frame 115, and the airflow will effectively speed up the discharge of the residue on the top of the slag guide frame 115 to prevent the residue from being retained on the slag guide frame 115.

[0027] Working principle: In actual use, people can introduce the wood pulp waste liquid after production into the barrel body 101 through the liquid inlet pipe 107, and introduce the pulp waste liquid into the inner tube 131 through the liquid inlet pipe 107. After the wood pulp waste liquid is introduced, the flocculating agent can be introduced into the wood pulp waste liquid through the liquid inlet pipe 107. The flocculating agent can be used to precipitate and flocculate suspended impurities and fine fibers in the wood pulp waste liquid, thereby achieving the treatment of the wood pulp waste liquid. After the flocculating agent is added, people can start the servo motor 108 through the control panel 102, and the work of the servo motor 108 can drive the rotating shaft 130 to rotate. The rotation of the rotating shaft 130 can effectively accelerate the full mixing of the flocculating agent and the wood pulp waste liquid, accelerate the reaction rate, and help to improve the The separation rate of wood fiber residue in wood pulp waste liquid is determined by the flocculation process. When the flocculation process is completed, people can start the electromagnet 132. Through the operation of the electromagnet 132, the connection between the rotating shaft 130 and the inner cylinder 131 can be achieved, so that the rotating shaft 130 can drive the inner cylinder 131 to rotate synchronously. At this time, the wood pulp waste liquid inside the inner cylinder 131 will pass through the screen 127 and the port 118 under the action of centrifugal force and be discharged, and fall into the outer bin 119. The screen 127 can block the residue in the wood pulp waste liquid, and separate the wood pulp waste liquid from the precipitated residue. The discharged waste liquid will be discharged through the drain pipe at the bottom of the outer bin 119. In the process of centrifugal separation of the wood pulp waste liquid and the residue, people can start the control bin 117 at a fixed time through the control panel 102. The pump body of the outer chamber 119 can extract part of the waste liquid in the outer chamber 119 through the pump body inside the control chamber 117 and spray it out through the spray disc 134. During the rotation of the inner cylinder 131, the water sprayed by the spray disc 134 can backwash the screen 127 in contact, so as to avoid a large amount of residue attached to the screen 127 during centrifugal separation, which affects the separation effect of the screen 127, and is conducive to the long-term separation work of the screen 127. During the backwashing of the screen 127, since the inlet on one side of the upper slag barrel 135 corresponds to the spray disc 134 respectively, the backwashed residue will fall into the upper slag barrel 135. At the same time, the driving gear 123 fixed on the outer periphery of the rotating shaft 130 can drive the driven gear meshed with it. The slag is then fed to the upper slag cylinder 135 and the slag is then fed to the lower slag cylinder 131 and the slag is then fed to the lower ...It can fully intercept the waste liquid in the residue during the transportation process, which is beneficial to improve the separation effect of wood pulp waste liquid and residue. After the residue enters the side bin 104, it will fall onto the filter plate 113, and the filter plate 113 can further filter and separate the residue. The waste liquid in the residue can be easily dripped by standing still. The inclined setting of the filter plate 113 can be conducive to the concentrated accumulation of the residue, which is convenient for sedimentation and separation. At this time, people can start the reduction motor 114 through the control panel 102, and the reduction motor 114 can drive the feeding conveyor belt 111 to rotate, and the lifting plate 110 can be used to pick up and discharge the residue on the filter plate 113 through the rotation of the feeding conveyor belt 111. When the lifting plate 110 containing the residue is driven to the upper part, the edge of the lifting plate 110 will encounter the card bar 109, and the card bar 109 will initially block the lifting plate 110. The collision between the two will cause the lifting plate 110 to vibrate, thereby shaking off the residue on the lifting plate 110, and the waste liquid at the bottom of the side bin 104 will pass The connecting pipe flows back to the inside of the outer bin 119 to achieve separation and diversion, which is beneficial to practical use. When the feeding auger 126 conveys the residue, the driven gear 122 rotates, which drives the transmission shaft in the middle of the blade 120 to rotate through the transmission assembly 121, thereby driving the blade 120 to rotate. When the blade 120 rotates, it disturbs the gas to form a downward airflow. When the airflow is downward, it will contact the slag guide frame 115. Due to the inclination of the slag guide frame 115 and the guidance of the curved surface, the airflow can be guided along the slag guide frame 115. The top surface of the slag guide frame 115 is led out from the opening 112, and the airflow can effectively speed up the leading out of the residue on the top of the slag guide frame 115, so as to avoid the residue being retained on the slag guide frame 115 and affecting the subsequent use, which is beneficial to the long-term separation work of the wood pulp waste liquid separation barrel 1. At the same time, the airflow will enter the inside of the side bin 104 through the opening 112, and the inflowing airflow will impact the residue on the filter plate 113 inside the side bin 104, thereby effectively speeding up the separation process of the residue on the filter plate 113 and the waste liquid mixed thereon, which is beneficial to the actual use.

[0028] 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 waste liquid residue separation device for wood pulp production, comprising a wood pulp waste liquid separation barrel (1), characterized in that: The wood pulp waste liquid separation barrel (1) comprises a barrel body (101), a slag guide frame (115) is fixedly connected to the upper part of the barrel body (101), the slag guide frame (115) is arranged in an inclined state, an opening (112) is provided at the upper part of one side of the barrel body (101), the lower end of the slag guide frame (115) faces the opening (112), a port is provided at the middle part of the top of the slag guide frame (115), an inner cylinder (131) is rotatably connected to the middle part of the barrel body (101), and the inner cylinder (131) is provided at the upper part of the barrel body (101). The outer periphery of the inner cylinder (131) is rotatably connected to an outer cylinder (128), a rotating shaft (130) is arranged inside the inner cylinder (131), a stirring frame (129) is fixedly connected to the lower part of the outer periphery of the rotating shaft (130), the stirring frame (129) is arranged inside the inner cylinder (131), an electromagnet (132) is fixedly connected to the bottom of the rotating shaft (130), the electromagnet (132) is rotatably connected to the inner bottom of the inner cylinder (131), and a uniformly distributed screen (127) is installed in the middle of the inner cylinder (131).

2. A waste liquid residue separation device for wood pulp production according to claim 1, characterized in that: An end cover (106) is installed on the top of the barrel body (101), a servo motor (108) is installed in the middle of the top of the end cover (106), the bottom driving end of the servo motor (108) is fixedly connected to the top of the rotating shaft (130), and a liquid inlet pipe (107) is fixedly connected to one side of the top of the end cover (106), and the outlet of the liquid inlet pipe (107) faces the top port of the slag guide frame (115).

3. The waste liquid and residue separation device for wood pulp production according to claim 1, characterized in that: A plurality of upper slag barrels (135) are arranged inside the inner barrel (131), and an entrance is opened on one side of each of the upper slag barrels (135). The entrances of each of the upper slag barrels (135) face the side wall of the inner barrel (131). A rotating shaft (124) is arranged inside each of the upper slag barrels (135), and a feeding auger (126) is fixedly connected to the lower part of the outer periphery of each of the rotating shafts (124). The feeding auger (126) is arranged inside each of the upper slag barrels (135).

4. A waste liquid residue separation device for wood pulp production according to claim 3, characterized in that: The top of the upper slag cylinder (135) is fixedly connected to a straight cylinder (116), the top of the straight cylinder (116) is fixedly connected to a top frame (133), a rotating shaft (124) passes through the middle of the top frame (133), the rotating shaft (124) is rotatably connected to the top frame (133), the top of the straight cylinder (116) passes through the slag guide frame (115), and the top of the straight cylinder (116) is fixedly connected to the slag guide frame (115).

5. The waste liquid and residue separation device for wood pulp production according to claim 4, characterized in that: A driving gear (123) is fixedly connected to the upper portion of the outer periphery of the rotating shaft (130), and a plurality of driven gears (122) are meshingly connected to the outer periphery of the driving gear (123). A fixed bin (125) is provided on one side of the straight cylinder (116), and the fixed bin (125) is installed at the upper portion of the barrel body (101). The inside of the fixed bin (125) is rotatably connected to a fan blade (120). The side of the driven gear (122) away from the driving gear (123) is connected to a transmission shaft in the middle of the fan blade (120) via a transmission assembly (121), and the transmission assembly (121) is arranged on the upper portion of the fixed bin (125) and the driven gear (122), and the fixed bin (125) is arranged on the upper portion of the slag guide frame (115).

6. The waste liquid and residue separation device for wood pulp production according to claim 1, characterized in that: Through openings (118) are provided inside and outside the barrel body (101), a water outlet pipe is installed on one side of the bottom of the through opening (118), the outer periphery of the inner cylinder (131) is rotatably connected to the outer cylinder (128), a plurality of control chambers (117) are installed on the outer periphery of the outer cylinder (128), a pump body is installed inside each of the control chambers (117), the pump body input end is arranged inside the through opening (118), the pump body output end is installed with a spray disc (134), and the middle of the outer cylinder (128) is provided with evenly distributed through openings (118).

7. The waste liquid and residue separation device for wood pulp production according to claim 1, characterized in that: A side bin (104) is installed on one side of the barrel body (101), a fixing frame (105) is installed on one side of the top of the side bin (104), a feeding conveyor belt (111) is arranged on the inner side of the fixing frame (105), and evenly distributed lifting plates (110) are fixedly connected to the outer periphery of the feeding conveyor belt (111), and a plurality of clamping strips (109) are fixedly connected to both inner parts of the fixing frame (105), a reduction motor (114) is installed on one side of the fixing frame (105), and the upper driving part of the feeding conveyor belt (111) is fixedly connected to the driving end of the reduction motor (114).

8. The waste liquid and residue separation device for wood pulp production according to claim 7, characterized in that: A filter plate (113) is installed at the upper inner portion of the side bin (104), and the filter plate (113) is arranged in an inclined state. The upper inner portion of the side bin (104) is connected to the upper inner portion of the barrel body (101) through an opening (112), and the lower inner portion of the side bin (104) is connected to the interior of the outer bin (119) through a connecting pipe.

9. The waste liquid and residue separation device for wood pulp production according to claim 8, characterized in that: A base (103) is installed at the bottom of the outer periphery of the barrel body (101), and a control panel (102) is installed at the front of the outer periphery of the barrel body (101). The control panel (102) is electrically connected to the electromagnet (132), the pump body, the servo motor (108), and the reduction motor (114).

10. A process for separating waste liquid and residue from wood pulp production, applied to a waste liquid and residue separation device for wood pulp production as claimed in any one of claims 1 to 9, characterized in that: The steps include: S1. In actual use, people introduce the wood pulp waste liquid after production into the barrel body (101) through the liquid inlet pipe (107), and the pulp waste liquid is introduced into the inner cylinder (131) through the liquid inlet pipe (107). After the wood pulp waste liquid is introduced, a flocculating agent is introduced into the wood pulp waste liquid through the liquid inlet pipe (107), and the suspended impurities and fine fibers in the wood pulp waste liquid are precipitated and flocculated by the flocculating agent; S2. After the flocculating agent is added, the servo motor (108) is started through the control panel (102), and the rotating shaft (130) is driven to rotate by the operation of the servo motor (108). The rotation of the rotating shaft (130) effectively accelerates the full mixing of the flocculating agent and the wood pulp waste liquid, thereby accelerating the reaction rate; S3. When the flocculation process is completed, the electromagnet (132) is started, and the connection between the rotating shaft (130) and the inner cylinder (131) is achieved through the operation of the electromagnet (132), so that the rotating shaft (130) drives the inner cylinder (131) to rotate synchronously. At this time, the wood pulp waste liquid inside the inner cylinder (131) passes through the screen (127) and the opening (118) under the action of centrifugal force and is discharged to the inside of the outer bin (119). The residue in the wood pulp waste liquid is blocked by the screen (127), and the wood pulp waste liquid and the precipitated residue are separated. The discharged waste liquid is discharged through the drainage pipe at the bottom of the outer bin (119); S4. During the centrifugal separation of the wood pulp waste liquid and the residue, the control panel (102) is used to time the start of the pump body inside the control chamber (117), so that part of the waste liquid inside the outer chamber (119) is extracted by the pump body inside the control chamber (117) and sprayed out through the spray plate (134). During the rotation of the inner cylinder (131), the water sprayed out by the spray plate (134) backwashes the screen (127) in contact with the water, thereby preventing a large amount of residue from being attached to the screen (127) during the centrifugal separation, thereby affecting the separation effect of the screen (127); S5. During the backwashing process of the screen (127), since the entrance of one side of the upper slag barrel (135) corresponds to the spray disc (134), the backwashed residue falls into the upper slag barrel (135). At the same time, the driving gear (123) fixed on the outer periphery of the rotating shaft (130) drives the driven gear (122) meshing with it to rotate, thereby driving the rotating shaft (124) fixed to the driven gear (122) to rotate synchronously. The residue in the upper slag barrel (135) is transported upward by the feeding auger (126) through the rotation of the rotating shaft (124), thereby realizing the discharge of the residue in the inner barrel (131), thereby preventing the residue from accumulating during continuous separation, thereby affecting the subsequent separation effect; S6, the residue is transported upward to the straight cylinder (116) through the feeding auger (126) and discharged through the top of the straight cylinder (116). The discharged residue falls to the top of the slag guide frame (115). The residue is guided to one side by the inclined setting of the slag guide frame (115), so that the residue enters the side bin (104) through the opening (112). The waste liquid in the residue is fully intercepted through the hydrophobic holes on the feeding auger (126). After entering the side bin (104), the residue falls onto the filter plate (113). The filter plate (113) further filters and separates the residue. The waste liquid in the residue is allowed to drip by standing still, and sedimentation and separation are performed. S7. At this time, people start the reduction motor (114) through the control panel (102), and the reduction motor (114) drives the feeding conveyor belt (111) to rotate. The lifting plate (110) is used to pick up and discharge the residue on the filter plate (113) through the rotation of the feeding conveyor belt (111). When the lifting plate (110) containing the residue is driven to the upper part, the edge of the lifting plate (110) will encounter the clamping bar (109), and the clamping bar (109) will initially block the lifting plate (110). The collision between the two will cause the lifting plate (110) to vibrate, thereby shaking off the residue on the lifting plate (110), and the waste liquid at the bottom of the side bin (104) will flow back to the inside of the outer bin (119) through the connecting pipe, thereby achieving separation and diversion; S8. When the conveying auger (126) is conveying the residue, the driven gear (122) rotates, driving the transmission shaft in the middle of the fan blade (120) to rotate through the transmission assembly (121), thereby driving the fan blade (120) to rotate. When the fan blade (120) rotates, it disturbs the gas, forming a downward airflow. When the airflow is downward, it contacts the slag guide frame (115). Due to the inclination of the slag guide frame (115) and the guidance of the curved surface, the airflow is led out from the opening (112) along the top surface of the slag guide frame (115). The airflow effectively accelerates the discharge of the residue on the top of the slag guide frame (115) and prevents the residue from being retained on the slag guide frame (115).

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