Waste paper pulp desanding equipment

Abstract

The utility model relates to waste paper pulp desanding equipment, which comprises a base and a cyclone desander arranged on the base, the top of the cyclone desander is provided with a water inlet pipe and a water outlet pipe, the bottom of the cyclone desander is provided with a sand outlet, a settling basin is connected below the sand outlet, the settling basin is in an inverted cone shape, and the settling basin is provided with a water inlet pipe and a water outlet pipe. An overflow pipe is arranged at the top of the sedimentation tank, a spiral conveying mechanism is obliquely arranged on one side of the sedimentation tank, the discharging end of the spiral conveying mechanism extends out of the sedimentation tank, a screen is obliquely arranged in the sedimentation tank, and magnets are distributed on grids. The desanding equipment for the waste paper pulp can be used for recycling metal in the paper pulp.

Description

Technical Field

[0001] This utility model relates to the field of papermaking equipment technology, and in particular to a waste paper pulp sand removal device. Background Technology

[0002] Pulp is made from certain plants and is the basic raw material for papermaking. Paper products can be recycled and reused. When recycling waste paper, it needs to be broken down into pulp. During the pulping process, since the pulp raw material is recycled, the water used to produce pulp inevitably contains a large amount of sand and gravel. Therefore, removing the silt and sand from the water is a key step in papermaking. Existing sand removal equipment is usually hydrocyclones, which can separate sand and gravel. However, recycled waste paper usually contains metal products, which existing sand removal equipment cannot recycle. Utility Model Content

[0003] To overcome the technical defects of the existing technology, this utility model provides a waste paper pulp desanding device that can recover metals from the pulp.

[0004] The technical solution adopted by this utility model is: a waste paper pulp sand removal device, including a base and a cyclone sand remover installed on the base. The top of the cyclone sand remover is provided with an inlet pipe and an outlet pipe. The bottom of the cyclone sand remover is provided with a sand outlet. A settling tank is connected below the sand outlet. The settling tank is inverted cone-shaped. An overflow pipe is provided at the top of the settling tank. An inclined spiral conveying mechanism is provided on one side of the settling tank. The discharge end of the spiral conveying mechanism extends outside the settling tank. A screen is inclinedly arranged inside the settling tank. Magnets are distributed on the screen.

[0005] Preferably, the top of the cyclone sand separator is provided with a cleaning pipe, and the cleaning pipe and the water inlet pipe are arranged opposite to each other.

[0006] Preferably, the sand outlet is provided with a clearing mechanism, which includes a toothed ring rotatably installed at the sand outlet and blades that fit against the inner wall of the cyclone separator. The blades are connected to the toothed ring in a transmission manner, and the bottom of the cyclone separator is provided with a drive mechanism to drive the toothed ring to rotate.

[0007] Preferably, the drive mechanism includes a drive motor mounted on the cyclone separator and a drive gear mounted on the conveying end of the drive motor, the drive gear meshing with the gear ring.

[0008] Preferably, the cyclone separator has multiple blades inside, which are spaced apart and are all connected to a gear ring drive.

[0009] Preferably, the blade has a protruding ridge on the side facing the axis of the cyclone separator.

[0010] The beneficial effects of this utility model are as follows: The waste paper pulp sand removal equipment of this utility model has a screen and a sedimentation tank. The screen can adsorb metal particles, so that sand and metal particles are separated and the metal particles and sand can be recycled separately, thereby improving the utilization value of waste paper. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a waste paper pulp sand removal device according to the present invention.

[0012] Figure 2 This is a top view of the cyclone sand separator of this utility model.

[0013] Figure 3 This is a schematic diagram of the installation of the unblocking mechanism of this utility model.

[0014] Figure 4 This is a schematic diagram of the blade structure of this utility model.

[0015] Explanation of reference numerals in the attached drawings: 1. Base; 2. Cyclone sand separator; 201. Inlet pipe; 202. Outlet pipe; 203. Sand outlet; 204. Drive motor; 205. Drive gear; 206. Gear ring; 207. Blade; 208. Protruding rib; 209. Cleaning pipe; 3. Sedimentation tank; 301. Screen; 302. Magnet; 303. Screw conveyor mechanism; 304. Overflow pipe. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] like Figures 1 to 4 As shown, this embodiment provides a waste paper pulp desanding device, including a base 1 and a cyclone desander 2 installed on the base 1. The top of the cyclone desander 2 is provided with an inlet pipe 201 and an outlet pipe 202. The bottom of the cyclone desander 2 is provided with a sand outlet 203. A settling tank 3 is connected below the sand outlet 203. The settling tank 3 is inverted conical in shape. The top of the settling tank 3 is provided with an overflow pipe 304. An inclined spiral conveying mechanism 303 is provided on one side of the settling tank 3. The discharge end of the spiral conveying mechanism 303 extends outside the settling tank 3. An inclined screen 301 is provided inside the settling tank 3. Magnets 302 are distributed on the screen.

[0018] In this embodiment, the top of the cyclone separator 2 is provided with a cleaning pipe 209. The cleaning pipe 209 and the water inlet pipe 201 are arranged opposite to each other. After a period of operation, by stopping the operation of the water inlet pipe 201, the reverse water flow is introduced into the cyclone separator 2 through the cleaning pipe 209 to clean the pulp and other materials adhering to the inner wall of the cyclone separator 2.

[0019] In this embodiment, a clearing mechanism is provided inside the sand outlet 203. The clearing mechanism includes a toothed ring 206 rotatably mounted at the sand outlet 203 and blades 207 that fit against the inner wall of the cyclone separator 2. The blades 207 have a protruding ridge 208 on the side facing the axial direction of the cyclone separator 2. The blades 207 are pulverizedly connected to the toothed ring 206. The bottom of the cyclone separator 2 is provided with a drive mechanism for driving the toothed ring 206 to rotate. The drive mechanism includes a drive motor 204 mounted on the cyclone separator 2 and a drive mechanism pulverizedly mounted on the drive motor. The drive gear 205 at the conveying end of 204 meshes with the gear ring 206. The cyclone sand remover 2 has multiple blades 207 inside, which are spaced apart and are all connected to the gear ring 206. Specifically, the lower end of the blades 207 extends downward and connects to the gear ring 206. The unblocking mechanism can prevent the sand removal port from being blocked. The drive motor 204 drives the gear ring 206 and the blades 207 to rotate. The blades 207 drive the sand and gravel on them to move, promoting the downward flow of sand and gravel.

[0020] This embodiment of a waste paper pulp sand removal device includes a screen 301 and a settling tank 3. The screen 301, equipped with a magnet 302, can adsorb metal particles, thus separating sand and metal particles. The sand and gravel settling at the bottom of the settling tank 3 are transported by a screw conveyor 303, and the clear water in the upper layer flows out through an overflow pipe 304 for secondary use. Metal particles and sand and gravel can be recycled separately, improving the utilization value of waste paper.

[0021] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A waste paper pulp desanding apparatus, characterized by: The utility model provides a sand removing device, which comprises a base and a cyclone sand remover installed on the base, the top of the cyclone sand remover is provided with a water inlet pipe and a water outlet pipe, the bottom of the cyclone sand remover is provided with a sand outlet, a sedimentation tank is connected below the sand outlet, the sedimentation tank is inverted conical, the top of the sedimentation tank is provided with an overflow pipe, one side of the sedimentation tank is provided with a spiral conveying mechanism arranged obliquely, the discharging end of the spiral conveying mechanism extends out of the sedimentation tank, a screen is arranged obliquely in the sedimentation tank, and magnets are arranged on the screen.

2. A waste paper pulp sand removal apparatus according to claim 1, characterized in that: The top of the cyclone sand remover is provided with a cleaning pipe, and the cleaning pipe is arranged opposite to the water inlet pipe.

3. A waste paper pulp sand removal apparatus according to claim 1, characterized in that: A dredging mechanism is arranged in the sand outlet, the dredging mechanism comprises a gear ring rotatably installed at the sand outlet and a blade abutting against the inner wall of the cyclone sand remover, the blade is in transmission connection with the gear ring, and the bottom of the cyclone sand remover is provided with a driving mechanism for driving the gear ring to rotate.

4. A waste paper pulp sand removal apparatus according to claim 3, wherein: The driving mechanism comprises a driving motor installed on the cyclone sand remover and a driving gear wheel in transmission connection with the driving motor and installed at the conveying end of the driving motor, and the driving gear wheel is in meshing connection with the gear ring.

5. A waste paper pulp sand removal apparatus according to claim 3, characterized in that: The inside of the cyclone sand remover is provided with a plurality of blades, the plurality of blades are arranged at intervals, and the plurality of blades are in transmission connection with the gear ring.

6. A waste paper pulp sand removal apparatus according to claim 3, characterized in that: The side of the blade, which is directed to the axis direction of the cyclone sand remover, is provided with a convex rib.

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