Pulping device

Abstract

The utility model provides a pulping device which comprises a stirring tank, a transfer tank and a size mixing tank, the stirring tank is arranged above the transfer tank, a screen is arranged in the transfer tank, a sundry layer and a size layer are respectively formed above and below the screen, solid sundries are blocked on the sundry layer, the size layer of the transfer tank is connected to the size mixing tank through a pump, and the size mixing tank is connected with the stirring tank. And the slurry without the solid impurities can be conveyed to a slurry mixing tank through a pump machine, so that the proportion of the slurry is further finely adjusted. According to the pulping device provided by the utility model, materials are preliminarily pulpified in the stirring tank, then solid impurities in the preliminarily pulpified materials are screened out through the transfer tank, and the pulp without the solid impurities is conveyed to the pulp mixing tank through the pump, so that the damage of the solid impurities to the pump can be effectively avoided, and the service life of a system is guaranteed; and after the solid impurities are screened out, the quality of the finally obtained slurry can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgy, in particular to a pulping device. Background Art

[0002] In hydrometallurgy, slurrying is a very important unit operation. The quality of slurrying directly affects the normal operation of production units such as leaching, purification, and filtration in the production system.

[0003] Highly viscous materials tend to clump after being stored for a period of time. If added directly, the clumped material can collide with the agitator blades during the slurrying process, potentially loosening the blades. Therefore, the material must first be broken up using a crusher. Once the material is broken up, it is slurried. This slurrying process creates a highly fluid slurry. However, the material can contain a lot of solid debris, which can easily clog the pipeline when passing through it, impacting production. During pumping, solid debris can rub against the pump casing and impeller, often jamming the impeller, causing the pump to stall and shortening its lifespan. Utility Model Content

[0004] Based on this, the purpose of the present invention is to provide a pulping device to solve the problem that solid debris in the material will reduce production efficiency and damage the life of the pump.

[0005] The utility model provides a pulping device, comprising: a stirring tank, a transfer tank and a pulping tank, wherein:

[0006] The stirring tank is arranged above the transfer tank, and the discharge port below the stirring tank is connected to the transfer tank through a discharge control valve;

[0007] A screen is provided in the transfer tank to form a debris layer and a slurry layer above and below the screen respectively. The slurry layer of the transfer tank is connected to the input end of the pump through a transfer pipe, and the output end of the pump is connected to the slurry mixing tank through a slurry inlet pipe.

[0008] Optionally, the slurry inlet pipe is further connected to an anti-overflow pipe, and the anti-overflow pipe is connected to the debris layer of the transfer tank.

[0009] Optionally, the discharge control valve includes a ball valve, and the feed end of the ball valve is connected to a compressed air pipeline.

[0010] Optionally, an inclined bottom plate is provided at the bottom of the transfer trough, and the bottom end of the inclined bottom plate is located on the side where the transfer pipe is provided.

[0011] Optionally, the bottom end of the stirring tank is conical.

[0012] Optionally, a cone-bottom agitator is provided in the stirring tank, and the setting position corresponds to the conical area at the bottom end of the stirring tank.

[0013] Optionally, a heater is provided in the stirring tank.

[0014] Optionally, a water inlet pipe, a feeding port and an exhaust port are provided on the top cover of the stirring tank.

[0015] The slurry making device provided by the present invention includes: a stirring tank, a transfer tank and a slurry adjusting tank, wherein the stirring tank is arranged above the transfer tank, and the discharge port below the stirring tank is connected to the transfer tank through a discharge control valve; a screen is provided in the transfer tank to form a debris layer and a slurry layer above and below the screen respectively, so as to block solid debris in the debris layer, the slurry layer of the transfer tank is connected to the input end of the pump through a transfer pipe, and the output end of the pump is connected to the slurry adjusting tank through a slurry inlet pipe, and the slurry after screening out the solid debris is then transported to the slurry adjusting tank by the pump to further fine-tune the slurry ratio. The slurry making device provided by the present invention performs preliminary slurrying on the material in the stirring tank, and then screens out the solid debris in the preliminary slurry material through the transfer tank, and the slurry after screening out the solid debris is transported to the slurry adjusting tank by the pump, which can effectively avoid the damage of the solid debris to the pump, ensure the service life of the system, and improve the quality of the mud finally obtained after screening out the solid debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the pulping device in the embodiment of the utility model.

[0017] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0018] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] In order to solve the problem that solid impurities in the material will reduce production efficiency and damage the life of the pump, the utility model provides a slurrying device, which performs preliminary slurrying on the material in the stirring tank, and then screens out the solid impurities in the preliminary slurry through the transfer tank. The slurry with the solid impurities screened out is transported by the pump to the slurry mixing tank to avoid damage to the pump by the solid impurities, ensure the life of the system, and improve the quality of the mud finally obtained after screening out the solid impurities.

[0022] Specifically, if Figure 1 As shown, the pulping device of this embodiment mainly includes: a stirring tank 2, a transfer tank 6 and a pulping tank 8, wherein the stirring tank 2 is arranged above the transfer tank 6, and the discharge port below the stirring tank 2 is connected to the transfer tank 6 through a discharge control valve. After the material is put into the stirring tank 2 and the initial slurrying is completed, the discharge control valve is opened and the material can flow smoothly into the transfer tank 6.

[0023] A screen 5 is provided in the transfer tank 6. The screen 5 is provided in the middle area of ​​the transfer tank 6 to form a debris layer and a slurry layer of a certain size above and below the screen 5 respectively. The slurry layer of the transfer tank 6 is connected to the input end of the pump 10 through a transfer pipe, and the output end of the pump 10 is connected to the slurry mixing tank 8 through a slurry inlet pipe 11. The solid debris in the preliminarily slurried material is retained in the debris layer by the screen 5, and the slurry with the solid debris screened out enters the slurry layer, and is then pumped out by the pump 10 and transported to the slurry mixing tank 8, where the slurry with the target ratio is further prepared.

[0024] The material initially slurried in the mixing tank 2 is directly transported to the transfer tank 6 by the discharge control valve. It is transported vertically without the restriction of the intermediate pipeline, which can avoid the damage of solid debris in the material to the pipeline and avoid the problem of material blocking the pipeline during this section of transportation.

[0025] The screen 2 includes a vibrating screen, a fixed screen, a linear screen, a cyclone screen, etc. According to the actual screening efficiency requirements, an active screen or a fixed screen can be adaptively selected.

[0026] To facilitate the control of the feed speed of the slurry mixing tank 8, in this embodiment, the slurry inlet pipe 11 is also connected to an anti-overflow pipe 7, which is connected to the debris layer of the transfer tank 6. When the flow in the slurry inlet pipe 11 is too large, the anti-overflow pipe 7 can be opened to return the excess flow to the transfer tank 6, which can reduce the power regulation demand for the pump 10 and reduce the control complexity.

[0027] The pump 10 includes but is not limited to a centrifugal slurry pump, a mixed flow slurry pump, an axial flow slurry pump, a submersible slurry pump, a vertical slurry pump, a horizontal slurry pump, and a hose pump, and can be selected according to the specific use object.

[0028] In order to improve the discharge efficiency from the stirring tank 2 to the transfer tank 6, in this embodiment, the discharge control valve includes a ball valve, and the feed end of the ball valve is connected to a compressed air pipe 4. When discharging, compressed air can be delivered at the same time to assist in promoting the transportation of the material slurry and improve the discharge efficiency of the high-viscosity material slurry.

[0029] In order to facilitate the output of the slurry in the slurry layer of the transfer trough 6, in this embodiment, an inclined bottom plate is provided at the bottom of the transfer trough 6, and the bottom end of the inclined bottom plate is located on the side where the transfer pipe is set, which can facilitate the slurry in the slurry layer to gather at the mouth of the transfer pipe, thereby ensuring the reliability of the slurry output.

[0030] To improve the discharge efficiency, in this embodiment, the bottom end of the stirring tank 2 is tapered. And to improve the slurrying efficiency of the preliminary slurrying, in this embodiment, the first agitator 3 provided in the stirring tank 2 includes an upper blade and a lower blade. The lower blade is a tapered structure, forming a cone-bottom agitator, and matches the tapered structure at the bottom end of the stirring tank 2, so that the stirring blades of the first agitator 3 can be evenly distributed in the stirring tank 2, effectively stirring both the cylindrical area and the tapered area of ​​the stirring tank 2, and ensuring the slurrying stirring efficiency.

[0031] The slurry mixing tank 8 is cylindrical in shape as a whole. There is no special requirement for the second agitator 12 provided therein. The first agitator 3 and the second agitator 12 can be turbine type, plate and frame type, ribbon type or other types of agitators.

[0032] Under low temperature conditions, the efficiency of material dissolution and slurrying is low. In order to reduce the effect of temperature on slurrying, a heater is further provided in the stirring tank 2. The heater can be in the form of steam heating, coil heating, electric heating, microwave heating, etc. For example, in the present embodiment, a hot water tank is further provided in the stirring tank 2, and a hot water inlet connected to the hot water tank is provided on the top of the stirring tank 2. In order to ensure the feeding efficiency, a water inlet pipe 9 and a feeding port 1 are provided on the top cover of the stirring tank 2. The input materials, water, and solutions can be effectively delivered to the stirring tank 2. An exhaust port is also provided to balance the air pressure in the stirring tank 2, ensure production safety, and facilitate processing.

[0033] An air pressure balancing valve may also be provided at the exhaust port to automatically stabilize the air pressure in the stirring tank 2. A specific air pressure balancing valve may be selected according to the specific requirements of the actual slurrying object for air pressure.

[0034] The slurry making device provided by the present invention includes: a stirring tank, a transfer tank and a slurry adjusting tank, wherein the stirring tank is arranged above the transfer tank, and the discharge port below the stirring tank is connected to the transfer tank through a discharge control valve; a screen is arranged in the transfer tank to form a debris layer and a slurry layer above and below the screen respectively, so as to block solid debris in the debris layer, the slurry layer of the transfer tank is connected to the input end of the pump through a transfer pipe, and the output end of the pump is connected to the slurry adjusting tank through a slurry inlet pipe, and the slurry after screening out the solid debris is then transported to the slurry adjusting tank by the pump to further fine-tune the slurry ratio. Overall, the material is preliminarily slurried in the stirring tank, and then the solid debris in the preliminarily slurried material is screened out through the transfer tank, and the slurry after screening out the solid debris is transported to the slurry adjusting tank by the pump, which can effectively avoid the damage of the solid debris to the pump, ensure the service life of the system, and improve the quality of the mud finally obtained after screening out the solid debris.

[0035] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0036] The above-described embodiments merely represent several specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A pulping device, characterized in that: include: Stirring tank, transfer tank and slurry mixing tank, among which, The stirring tank is arranged above the transfer tank, and the discharge port below the stirring tank is connected to the transfer tank through a discharge control valve; A screen is provided in the transfer tank to form a debris layer and a slurry layer above and below the screen respectively. The slurry layer of the transfer tank is connected to the input end of the pump through a transfer pipe, and the output end of the pump is connected to the slurry mixing tank through a slurry inlet pipe.

2. The pulping device according to claim 1, characterized in that: The slurry inlet pipe is also connected to an anti-overflow pipe, and the anti-overflow pipe is connected to the debris layer of the transfer tank.

3. The pulping device according to claim 1, characterized in that: The discharge control valve comprises a ball valve, and a feed end of the ball valve is connected to a compressed air pipeline.

4. The pulping device according to claim 1, characterized in that: An inclined bottom plate is provided at the bottom of the transfer trough, and the bottom end of the inclined bottom plate is located at the side where the transfer pipe is provided.

5. The pulping device according to claim 1, characterized in that: The bottom end of the stirring tank is conical.

6. The pulping device according to claim 5, characterized in that: A cone-bottom agitator is provided in the stirring tank, and the setting position corresponds to the cone-shaped area at the bottom end of the stirring tank.

7. The pulping device according to claim 1, characterized in that: A heater is provided in the stirring tank.

8. The pulping device according to claim 1, characterized in that: The top cover of the stirring tank is provided with a water inlet pipe, a feeding port and an exhaust port.

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