A deinking sludge cooling device

Abstract

The utility model provides a kind of deinking sludge cooling device, it includes frame, lifting cylinder, lifting cylinder is obliquely installed on frame, water storage tank is installed in the lower part of frame, feeding hopper is installed in the lower end of lifting cylinder, sludge conveyor belt is equipped in the upper of feeding hopper, cooling water pipe is equipped on the cylinder wall of lifting cylinder, the bottom of the higher end of lifting cylinder is equipped with sludge outlet, the top of the higher end of lifting cylinder is equipped with vertical upward exhaust cylinder, condensation pipe is connected in the top of exhaust cylinder, condensation pipe outlet extends to water storage tank, cooling water pump is equipped in water storage tank, cooling water pump is connected with the higher end cooling water pipe of lifting cylinder by water supply pipe.The scheme can cool and solidify hot, viscous deinking sludge (temperature is higher when discharging from deinking flotation or washing section), facilitate subsequent processing and transportation.

Description

Technical Field

[0001] This utility model relates to the field of bioproduct technology, and in particular to a deinking soap sludge cooling device. Background Technology

[0002] Deinking agents are chemicals or biological products that separate waste paper fibers from ink. Their main function is to break the adhesion of ink to paper fibers, causing the ink to peel off and disperse in water. Deinking agents have a series of effects on the ink on paper, including wetting, penetration, emulsification, dispersion, solubilization, and washing. Deinking soap is a viscous waste product generated during the deinking process, containing ink particles, fine fibers, fillers (such as calcium carbonate and kaolin), and chemical residues. It needs to be cooled and solidified before entering crushing equipment for further processing and purification. Traditionally, fluidized bed coolers are mostly used for cooling, which are highly efficient but require a large footprint and have high maintenance costs. Summary of the Invention

[0003] The purpose of this invention is to provide a deinking soap sludge cooling device with a reasonable structure and good performance.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows: a deinking soap sludge cooling device, which includes a frame and a lifting cylinder. The lifting cylinder is installed at an incline on the frame. A water storage tank is installed at the lower part of the frame. A feed hopper is installed at the lower end of the lifting cylinder. A sludge conveyor belt is provided above the feed hopper. Cooling water pipes are provided on the cylinder wall. A sludge discharge outlet is provided at the bottom of the higher end of the lifting cylinder. A vertically upward exhaust pipe is provided at the top of the higher end of the lifting cylinder. A condensation pipe is connected to the top of the exhaust pipe. The outlet of the condensation pipe extends downward into the water storage tank. A cooling water pump is provided in the water storage tank. The cooling water pump is connected to the cooling water pipe at the higher end of the lifting cylinder through a water supply pipe.

[0005] The lower end of the cooling water pipe is equipped with a drain pipe, which is connected to the water storage tank.

[0006] The cooling water pipe is spirally wound or jacketed and fitted onto the outer wall of the lifting cylinder.

[0007] The sludge conveyor belt is made of mesh or woven conveyor belt. A water guide scraper is installed at the bottom of the output end of the sludge conveyor belt at an incline, and the higher end of the water guide scraper is in contact with the supporting surface of the sludge conveyor belt.

[0008] The aforementioned lifting cylinder is a spiral lifting machine.

[0009] In this invention, the sludge conveyor belt receives hot, wet sludge from the deinking line. During the conveying process, the water in the sludge is separated by a mesh conveyor belt. The contact point between the water guide scraper and the sludge conveyor belt is located above the feed hopper. While guiding the water, the scraper removes the sludge adhering to the surface of the rotating sludge conveyor belt, causing the scraped sludge to fall into the feed hopper. As the elevator slowly conveys the sludge forward, the cooling water in the cooling water pipe carries away the heat from the sludge, lowering its temperature. At the same time, some of the water evaporates. The evaporated water vapor enters the condensation pipe from the exhaust pipe and is then guided into the water storage tank. The water in the water storage tank is supplied to the cooling water pipe by a cooling water pump and then discharged from the lower end of the cooling water pipe back to the water storage tank, achieving circulation. This solution can cool and solidify the hot, viscous deinking sludge (which is at a high temperature when it is discharged from the deinking flotation or washing section), facilitating subsequent processing and transportation. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation

[0011] The present invention will be further described below with reference to all the accompanying drawings. The preferred embodiment of the present invention is as follows:

[0012] The embodiments described in this paper with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0013] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0014] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0015] See appendix Figure 1The deinking sludge cooling device described in this embodiment includes a frame 1 and a lifting cylinder 2. The lifting cylinder 2 is installed at an incline on the frame 1. A water storage tank 10 is installed at the lower part of the frame 1. A feed hopper 3 is installed at the lower end of the lifting cylinder 2. A sludge conveyor belt 4 is installed above the feed hopper 3. Cooling water pipes 6 are installed on the cylinder wall of the lifting cylinder 2. A sludge discharge outlet 7 is provided at the bottom of the higher end of the lifting cylinder 2. A vertically upward exhaust pipe 8 is provided at the top of the higher end of the lifting cylinder 2. A condensation pipe 9 is connected to the top of the exhaust pipe 8. The outlet of the condensation pipe 9 extends downward into the water storage tank 10. A cooling water pump is installed in the water storage tank 10. The cooling water pump is connected to the cooling water pipe 6 at the higher end of the lifting cylinder 2 through a water supply pipe. A drain pipe is provided at the lower end of the cooling water pipe 6, and the drain pipe is connected to the water storage tank 10. The cooling water pipe 6 is spirally wound or jacketed and fitted onto the outer wall of the lifting cylinder 2. The sludge conveyor belt 4 is made of mesh or woven conveyor belt. A water guide scraper 5 is installed at the bottom of the output end of the sludge conveyor belt 4 at an angle, with the higher end of the water guide scraper 5 in contact with the supporting surface of the sludge conveyor belt 4. The lifting cylinder 2 is a spiral lifting machine.

[0016] After adopting the above scheme, the sludge conveyor belt receives hot wet sludge (usually 60-80°C) from the deinking line (usually flotation cell or thickener underflow). During the conveying process, a mesh conveyor belt filters and separates the water from the sludge. The contact point between the water guide scraper and the sludge conveyor belt is located above the feed hopper. While guiding the water, it scrapes off the sludge adhering to the rotating conveyor belt, causing the scraped sludge to fall into the feed hopper. Cooling water pipes are spirally wound or jacketed onto the outer wall of the lifting cylinder. As the lifting cylinder slowly conveys the sludge forward, the cooling water (usually circulating cooling water or chilled water) in the cooling water pipes carries away the heat from the sludge, lowering its temperature (typically below 40°C). Simultaneously, some water evaporates. The evaporated water vapor enters the condensation pipe from the exhaust stack, and then is guided through the condensation pipe into the water storage tank. Water in the water storage tank is supplied to the cooling water pipes by a cooling water pump, and then discharged from the lower end of the cooling water pipes back to the water storage tank, achieving circulation. This solution can cool and solidify hot, viscous deinking sludge (which is at a high temperature when discharged from the deinking flotation or washing section), facilitating subsequent processing and transportation. Its structure is relatively simple, combining conveying and cooling functions. The appropriate length, diameter, screw speed, and cooling water flow rate / temperature need to be selected based on the amount of sludge, initial temperature, and target temperature. It is typically designed with an inclined angle to facilitate drainage (condensate or a small amount of squeezed-out water). This design results in a rational structure and good performance.

[0017] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all changes made in accordance with the shape and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A deinking soap sludge cooling device, comprising a frame (1) and a lifting cylinder (2), characterized in that: The lifting cylinder (2) is installed at an angle on the frame (1). A water storage tank (10) is installed at the lower part of the frame (1). A feed hopper (3) is installed at the lower end of the lifting cylinder (2). A mud conveyor belt (4) is installed above the feed hopper (3). A cooling water pipe (6) is installed on the cylinder wall of the lifting cylinder (2). A mud discharge outlet (7) is installed at the bottom of the higher end of the lifting cylinder (2). A vertically upward exhaust pipe (8) is installed at the top of the higher end of the lifting cylinder (2). A condensation pipe (9) is connected to the top of the exhaust pipe (8). The outlet of the condensation pipe (9) extends downward into the water storage tank (10). A cooling water pump is installed in the water storage tank (10). The cooling water pump is connected to the cooling water pipe (6) at the higher end of the lifting cylinder (2) through a water supply pipe.

2. The deinking soap sludge cooling device according to claim 1, characterized in that: The lower end of the cooling water pipe (6) is provided with a drain pipe, which is connected to the water storage tank (10).

3. The deinking soap sludge cooling device according to claim 1, characterized in that: The cooling water pipe (6) is spirally wound or jacketed and fitted on the outer wall of the lifting cylinder (2).

4. The deinking soap sludge cooling device according to claim 1, characterized in that: The mud conveyor belt (4) adopts a mesh conveyor or a woven conveyor belt. A water guide scraper (5) is installed at the bottom of the output end of the mud conveyor belt (4) at an incline. The higher end of the water guide scraper (5) is in contact with the support surface of the mud conveyor belt (4).

5. The deinking soap sludge cooling device according to claim 1, characterized in that: The lifting cylinder (2) is a spiral lifting machine.

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