Dehydration device for sludge separation treatment
By introducing flocculant stirring and extrusion plate structure into the dewatering device, the problem of poor sludge compressibility in existing devices is solved, achieving rapid sludge settling and efficient solid-liquid separation, thus improving the dewatering effect.
Patent Information
- Application Number
- CN202422446838.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-10-10
AI Technical Summary
Existing dewatering devices lack pretreatment functions in sludge treatment, resulting in poor compressibility of sludge and reduced dewatering efficiency.
By introducing a flocculant stirring and extrusion plate structure into the device, the flocculant is first stirred and mixed with sludge by stirring blades to promote the coagulation of colloidal particles. Then, the extrusion plate is driven by a threaded rod to extrude the sludge, thereby achieving solid-liquid separation.
It improves the settling speed and dewatering efficiency of sludge, enhances the solid-liquid separation effect, and improves the dewatering effect of sludge.
Smart Images
Figure CN223752600U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to sewage treatment technical field, concretely relates to a dewatering device for sludge separation treatment. BACKGROUND
[0002] A sludge treatment method for removing water from the flow state of raw sludge, concentrated sludge or digested sludge and converting it into semi-solid or solid sludge blocks. After dewatering, the moisture content of the sludge can be reduced by 55% to 80%, depending on the properties of the sludge and sediment and the efficiency of the dewatering equipment. Further dewatering of the sludge is referred to as sludge drying, and the moisture content of the dried sludge is 10%. The dewatering method mainly includes natural drying method, mechanical dewatering method and granulation method. However, the current dewatering device cannot dewater the sludge quickly and efficiently during dewatering.
[0003] The existing dewatering device, in the process of use, is through the cooperation of each part under the drive structure to extrude the sludge, separates the sewage and sludge, and achieves the purpose of mechanical dewatering. However, during mechanical dewatering, the device does not have a pretreatment function, cannot change the structure of the sludge, reduces the compressibility of the sludge, and greatly reduces the dewatering effect. Therefore, we provide a dewatering device for sludge separation treatment. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a dewatering device for sludge separation treatment to solve the problems in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a dewatering device for sludge separation treatment, comprising a bottom plate, a supporting plate is fixedly connected to the left side of the top of the bottom plate, and a mixing box is fixedly connected to the top of the supporting plate, a medicine inlet is formed in the left side of the top of the mixing box, a sludge conveying pipe is communicated with the right side of the top of the mixing box, a No. 1 motor is fixedly installed on the left side of the mixing box, a stirring rod is fixedly connected to the output end of the No. 1 motor, stirring blades are arranged on the surface of the stirring rod, a rectangular sludge outlet pipe is communicated with the bottom of the right side of the mixing box, a baffle is pulled out in the inner cavity of the rectangular sludge outlet pipe, and a dewatering box is communicated with the bottom of the rectangular sludge outlet pipe.
[0006] Adopting the above scheme, the sludge in the sludge pool is transported to the inner cavity of the mixing box through the external screw pump through the sludge conveying pipe, after the transportation is completed, the flocculating agent is added through the medicine inlet, at the same time, the stirring rod is driven to rotate through the first motor, the stirring blade is driven to rotate through the stirring rod, the flocculating agent and the sludge are stirred through the stirring blade, so that the flocculating agent and the sludge are uniformly mixed, in the mixing process of the flocculating agent and the sludge, the electric property of the organic colloid with negative charge in the sludge can be neutralized, the colloid particles are quickly coagulated into large block flocculation which is easy to separate from the suspension, which is helpful for the rapid settlement of the sludge, and the purpose of pretreatment is achieved, which is convenient for subsequent solid-liquid separation.
[0007] As a preferred embodiment of the sludge separation and treatment dewatering device, the right side of the inner cavity of the mixing box is fixedly connected with a bearing, one end of the stirring rod is fixedly connected with an inner ring, and the inner ring is rotatably connected in the inner cavity of the bearing.
[0008] Adopting the above scheme, the one end of the stirring rod is limited through the setting of the bearing, so as to prevent the one end of the stirring rod from being in a suspended state, and further prevent the shaking condition from occurring.
[0009] As a preferred embodiment of the sludge separation and treatment dewatering device, the right side of the top of the dewatering box is fixedly connected with a shell, the right side of the shell is fixedly installed with a second motor, the output end of the second motor is fixedly connected with a threaded rod, the surface of the threaded rod is threadedly connected with a threaded sleeve, the bottom of the threaded sleeve is fixedly connected with a vertical plate, the bottom of one side of the vertical plate is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected with a clamping block, and the clamping block and the extrusion plate are fixedly connected through mounting bolts, and the left side of the inner cavity of the dewatering box is provided with cloth, and the bottom of the left side of the dewatering box is communicated with a water outlet pipe.
[0010] Adopting the above scheme, the second motor is started, the threaded rod is driven to rotate through the rotary motion of the second motor, and then the threaded sleeve is guided to move transversely along the axis direction of the threaded rod through the slope of the thread on the threaded rod, so as to convert the rotary force into transverse movement, when the threaded sleeve moves transversely, the vertical plate can be driven to move, the clamping block and the extrusion plate are driven to move through the cooperation of the vertical plate and the connecting rod, when the extrusion plate contacts with the pretreated sludge, the sludge is extruded through the pressure difference generated by the contact surface between the extrusion plate and the sludge, in the extrusion process, the solid and water in the sludge are separated through the cloth, the separated water is output through the water outlet pipe, and the purpose of mechanical dewatering is achieved.
[0011] As a preferred embodiment of the sludge separation and treatment dewatering device, the surface of the dewatering box is provided with a sealing shell, and the sealing shell and the dewatering box are fixedly connected through fastening bolts.
[0012] By adopting the scheme, the sealing shell can be quickly disassembled from the surface of the dehydration tank through the arrangement of the fastening bolt, and the inner cavity of the dehydration tank can be regularly cleaned by the external cleaning tool after disassembly, thereby improving the cleanliness of the inner cavity of the dehydration tank.
[0013] As a preferred embodiment of the sludge separation and treatment dehydration device, a chute is arranged at the top of the inner cavity of the shell, and a sliding block is fixedly connected to the top of the threaded sleeve and slidably connected to the inner wall of the chute.
[0014] By arranging the chute, the sliding block is limited, and the threaded sleeve is assisted to move, thereby preventing the threaded sleeve from rotating and moving horizontally.
[0015] As a preferred embodiment of the sludge separation and treatment dehydration device, a guide plate is fixedly connected to the bottom of the inner cavity of the mixing tank, and the top of the guide plate is inclined.
[0016] By arranging the guide plate, the stirred sludge is directionally transported to the direction of the rectangular sludge outlet pipe, so as to assist in discharging, and the discharging efficiency is greatly improved.
[0017] Compared with the prior art, the utility model has the advantages that:
[0018] 1. The sludge in the sludge pool is transported to the inner cavity of the mixing tank through the sludge conveying pipe by the external screw pump, the flocculating agent is added through the medicine inlet after the transportation is completed, the stirring rod is driven to rotate by the first motor, the stirring blade is driven to rotate by the stirring rod, the flocculating agent and the sludge are stirred by the stirring blade, the flocculating agent and the sludge are uniformly mixed, the electrical property of the organic colloid with negative charge in the sludge can be neutralized in the mixing process of the flocculating agent and the sludge, the colloid particles are quickly coagulated into large flocculating substances that can be easily separated from the suspension, the rapid settlement of the sludge is facilitated, the pretreatment purpose is achieved, and subsequent solid-liquid separation is facilitated.
[0019] 2. The second motor is used for driving the threaded rod to rotate, and then the threaded sleeve is guided to move horizontally along the axis direction of the threaded rod through the slope of the thread on the threaded rod, so as to convert the rotary force into horizontal movement. When the threaded sleeve moves horizontally, the vertical plate can be driven to move, the clamping block and the extrusion plate are driven to move under the cooperation of the connecting rod, when the extrusion plate contacts the pretreated sludge, the pressure difference between the contact surfaces of the extrusion plate and the sludge is generated, the sludge is extruded, and the solid and water in the sludge are separated by the cloth in the extrusion process. The separated water is output through the water outlet pipe, and the mechanical dehydration purpose is achieved. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1The structural schematic view of the utility model;
[0021] Figure 2 The dehydration tank sectional view of the utility model;
[0022] Figure 3 The shell sectional view of the utility model.
[0023] In the drawing: 1, bottom plate; 2, mixing box; 3, No. 1 motor; 4, stirring rod; 5, stirring blade; 6, rectangular mud outlet pipe; 7, baffle; 8, dehydration tank; 9, shell; 10, No. 2 motor; 11, threaded rod; 12, threaded sleeve; 13, vertical plate; 14, connecting rod; 15, clamping block; 16, extrusion plate; 17, cloth; 18, water outlet pipe. DETAILED DESCRIPTION
[0024] Please refer to Figures 1-3 A kind of dehydration device for sludge separation treatment, including bottom plate 1, the left side of the top of bottom plate 1 is fixedly connected with support plate, and the top of support plate is fixedly connected with mixing box 2, the left side of the top of mixing box 2 is provided with inlet, and the right side of the top of mixing box 2 is communicated with mud conveying pipe, one No. 1 motor 3 is fixedly installed on the left side of mixing box 2, the output end of No. 1 motor 3 is fixedly connected with stirring rod 4, the surface of stirring rod 4 is equipped with stirring blade 5, the bottom of the right side of mixing box 2 is communicated with rectangular mud outlet pipe 6, baffle 7 is pulled in the inner chamber of rectangular mud outlet pipe 6, the bottom of rectangular mud outlet pipe 6 is communicated with dehydration tank 8, see Figure 2 And Figure 3 As shown, the right side of the top of dehydration tank 8 is fixedly connected with shell 9, see Figure 3As shown, the top of the cavity of the shell 9 is provided with a sliding slot, the top of the threaded sleeve 12 is fixedly connected with a sliding block, and the top of the sliding block is slidably connected with the inner wall of the sliding slot. By the arrangement of the sliding slot, the sliding block is limited, which assists the movement of the threaded sleeve 12 and prevents the threaded sleeve 12 from rotating and moving horizontally. The right side of the shell 9 is fixedly installed with a second motor 10, the output end of the second motor 10 is fixedly connected with a threaded rod 11, the surface of the threaded rod 11 is threadedly connected with the threaded sleeve 12, the bottom of the threaded sleeve 12 is fixedly connected with a vertical plate 13, the bottom of one side of the vertical plate 13 is fixedly connected with a connecting rod 14, one end of the connecting rod 14 is fixedly connected with a clamping block 15, and the clamping block 15 and the extrusion plate 16 are fixedly connected through mounting bolts. The left side of the cavity of the dehydration tank 8 is provided with a cloth 17, and the bottom of the left side of the dehydration tank 8 is communicated with a water outlet pipe 18. The second motor 10 is started, the rotating movement of the second motor 10 drives the threaded rod 11 to rotate, and then the threaded sleeve 12 moves horizontally along the axis direction of the threaded rod 11 through the slope of the thread on the threaded rod 11, so as to convert the rotating force into horizontal movement. When the threaded sleeve 12 moves horizontally, it can drive the vertical plate 13 to move, and the clamping block 15 and the extrusion plate 16 move under the cooperation of the connecting rod 14. When the extrusion plate 16 contacts with the pretreated sludge, the sludge is extruded through the pressure difference generated by the contact surface of the extrusion plate 16 and the sludge. In the extrusion process, the solid and water in the sludge are separated by the cloth 17, and the separated water is output through the water outlet pipe 18 to achieve the purpose of mechanical dehydration. The sludge in the sludge tank is transported to the inner cavity of the mixing tank 2 through the sludge conveying pipe by the external screw pump. After the transportation is completed, the flocculating agent is added through the medicine inlet, and the stirring rod 4 is driven to rotate by the first motor 3. The stirring blade 5 is driven to rotate by the stirring rod 4. The stirring blade 5 stirs the flocculating agent and the sludge to make them mix uniformly. In the process of mixing the flocculating agent and the sludge, the electrical properties of the organic colloid with negative charge in the sludge can be neutralized, which promotes the colloidal particles to quickly coagulate into large flocculent substances that are easy to separate from the suspension, which helps the rapid settlement of the sludge and achieves the purpose of pretreatment, which is convenient for subsequent solid-liquid separation.
[0025] See Figure 1 As shown, the right side of the inner cavity of the mixing tank 2 is fixedly connected with a bearing, one end of the stirring rod 4 is fixedly connected with an inner ring, and the inner ring is rotatably connected in the inner cavity of the bearing. By the arrangement of the bearing, one end of the stirring rod 4 is limited to prevent one end of the stirring rod 4 from being in a suspended state and then being shaken. Figure 1 As shown, the surface of the dehydration tank 8 is provided with a sealing shell, and the sealing shell and the dehydration tank 8 are fixedly connected through fastening bolts. By the arrangement of the fastening bolts, the sealing shell can be quickly disassembled on the surface of the dehydration tank 8. After disassembly, the inner cavity of the dehydration tank 8 is regularly cleaned by external cleaning tools, which improves the cleanliness of the inner cavity of the dehydration tank 8.Figure 1 As shown, the bottom of the inner cavity of the mixing box 2 is fixedly connected with a guide plate, and the top of the guide plate is inclined, which can help to direct the stirring sludge to the direction of the rectangular sludge outlet pipe 6, so as to achieve the purpose of auxiliary discharging and greatly improve the discharging efficiency.
[0026] In use, first, the sludge in the sludge pool is transported to the inner cavity of the mixing box 2 through the sludge conveying pipe by the external screw pump, then the flocculating agent is added through the medicine inlet, and the stirring rod 4 is driven to rotate by the first motor 3, the stirring blade 5 is driven to rotate by the stirring rod 4, and the flocculating agent and the sludge are stirred by the stirring blade 5, so that the flocculating agent and the sludge are uniformly mixed, the electric property of the organic colloid with negative charge in the sludge can be neutralized in the mixing process of the flocculating agent and the sludge, which can promote the colloid particles to quickly coagulate into large flocculent substances that can be easily separated from the suspension, which is helpful for the rapid settlement of the sludge and achieves the purpose of pretreatment, then the baffle 7 is pulled out from the inner cavity of the rectangular sludge outlet pipe 6, so that the stirred sludge is transported to the inner cavity of the dehydration box 8 through the rectangular sludge outlet pipe 6, after the transportation is completed, the baffle 7 is reset, finally the second motor 10 is started, the threaded rod 11 is driven to rotate by the rotary motion of the second motor 10, and then the threaded sleeve 12 is guided to move transversely along the axis of the threaded rod 11 by the slope of the threads on the threaded rod 11, so as to convert the rotary force into transverse movement, when the threaded sleeve 12 moves transversely, it can drive the vertical plate 13 to move, and the clamping block 15 and the extrusion plate 16 are driven to move by the vertical plate 13 cooperating with the connecting rod 14, when the extrusion plate 16 contacts with the pretreated sludge, the sludge is extruded by the pressure difference generated by the contact surface between the extrusion plate 16 and the sludge, in the extrusion process, the solid and water in the sludge are separated by the cloth 17, and the separated water is output through the water outlet pipe 18, so as to achieve the purpose of mechanical dehydration.
Claims
1. A dewatering device for sludge separation and treatment, characterized in that: The utility model relates to a mud mixing device, including bottom plate (1), the left side fixed connection of bottom plate (1) top has the support plate, and the top fixed connection of support plate has mix box (2), the left side of mix box (2) top is opened has the medicine inlet, the right side intercommunication of mix box (2) top has the mud pipe, the left side fixed mounting of mix box (2) has no.
2. The dewatering device for sludge separation treatment according to claim 1, characterized by: The utility model relates to a mud mixing device, including bottom plate (1), the left side fixed connection of bottom plate (1) top has the support plate, and the top fixed connection of support plate has mix box (2), the left side of mix box (2) top is opened has the medicine inlet, the right side intercommunication of mix box (2) top has the mud pipe, the left side fixed mounting of mix box (2) has no.
3. The dewatering device for sludge separation treatment according to claim 1, characterized by: The utility model relates to a mud mixing device, including bottom plate (1), the left side fixed connection of bottom plate (1) top has the support plate, and the top fixed connection of support plate has mix box (2), the left side of mix box (2) top is opened has the medicine inlet, the right side intercommunication of mix box (2) top has the mud pipe, the left side fixed mounting of mix box (2) has no.
4. The dewatering device for sludge separation treatment according to claim 1, characterized by: The utility model relates to a mud mixing device, including bottom plate (1), the left side fixed connection of bottom plate (1) top has the support plate, and the top fixed connection of support plate has mix box (2), the left side of mix box (2) top is opened has the medicine inlet, the right side intercommunication of mix box (2) top has the mud pipe, the left side fixed mounting of mix box (2) has no.
5. The dewatering device for sludge separation treatment according to claim 1, characterized by: The utility model relates to a mud mixing device, including bottom plate (1), the left side fixed connection of bottom plate (1) top has the support plate, and the top fixed connection of support plate has mix box (2), the left side of mix box (2) top is opened has the medicine inlet, the right side intercommunication of mix box (2) top has the mud pipe, the left side fixed mounting of mix box (2) has no.