Self-cleaning filter residue pulping and stirring device

Abstract

The invention provides a self-cleaning filter residue pulping stirring device, and belongs to the field of slurry preparation, the device comprises a stirring machine barrel, a rotary residue filtering device and a stirring device arranged at the upper end of the stirring machine barrel, and a residue discharging mechanism arranged on one side of the stirring machine barrel; and the rotary residue filtering device comprises an electrically-driven turntable arranged in the middle of the upper end of the stirrer barrel body and a plurality of residue filtering sieves surrounding the electrically-driven turntable. Feeding impurity screening, oversize impurity cleaning and collecting and screen cleaning are achieved in a zoning mode, all the processes are carried out synchronously, the interference degree is low, feeding does not need to be stopped when oversize impurity cleaning is carried out, and the pulping efficiency of equipment is improved; the residue discharging mechanism is simple in design, impurities on the screen can be directly collected to a detachable residue collecting cloth bag conveniently, environmental protection is achieved, and the cost is controllable; the water inlet system has cleaning and blending functions, screen mesh blockage is effectively prevented, and the equipment reliability is improved. The device is suitable for various materials, the slag removal effect is ensured, and the risks of conveying pipe blockage and bottom hardening of the stirring barrel are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of slurry preparation, and particularly relates to a self-cleaning filter residue pulping stirring device. Background Art

[0002] In the processes of ore dressing and filling production, some technological processes require pulping treatment of solid or high-concentration two-phase flow materials to obtain a target slurry with a reasonable concentration. However, some sundries, such as wood chips, plastics, and powder consolidation lumps, are often carried in the front-end process. If not screened out, it will affect the ore dressing efficiency or the filling strength result. Currently, a filtering device is often installed at the outlet of the feed pipe for impurity removal, and a screen with a pore size larger than the target product is used for effective screening. However, the existing solutions only consider the impurity screening process itself, and do not consider the cleaning and collection of the over-screen impurities and the cleaning process of the screen. Prolonged use will cause the screen to be blocked by impurities, affecting the material discharge speed, resulting in large fluctuations in the concentration of the output product of the process and a decrease in the slurry preparation efficiency. If the impurities are not cleaned in time, it will also cause the material to leak out from the edge of the screen, allowing the impurities to re-mix into the slurry, leading to problems such as pipe blockage and pipe explosion accidents in the subsequent pipeline transportation process, and a sharp decrease in the output rate in the ore pulp purification process.

[0003] In view of this, it is necessary to design a self-cleaning filter residue pulping stirring device to solve the above problems. Summary of the Invention

[0004] In view of the technical problems in the background art, the present application provides a self-cleaning filter residue pulping stirring device. Through the cyclic switching of the screen position, functional zoning of filter residue, discharging, and water inlet cleaning in the pulping impurity process is achieved, and the screen pore size and cyclic switching time can be selected according to the impurity characteristics to ensure the slag cleaning effect.

[0005] The present application provides a self-cleaning filter residue pulping stirring device, which includes a mixer barrel body, a rotary filter residue device and a stirring device arranged at the upper end of the mixer barrel body, and a slag discharging mechanism arranged on one side of the mixer barrel body; the rotary filter residue device includes an electric drive turntable arranged in the middle of the upper end of the mixer barrel body and a plurality of filter residue screens surrounding the electric drive turntable.

[0006] As a further improvement of the present application, the stirring device includes a stirring drive motor, a stirring shaft and stirring blades; the electric drive turntable is sleeved on the periphery of the stirring shaft.

[0007] As a further improvement of the present application, the electric drive turntable is connected to the filter residue screen and is used to exchange the positions of the filter residue screens.

[0008] As a further improvement of the present application, a quick-release enclosure is arranged on the side of the filter residue screen away from the electric drive turntable.

[0009] As a further improvement of the present application, the number of the filter residue screens is 3, which are respectively located at the first screen position, the second screen position and the third screen position, and are distributed at equal intervals.

[0010] As a further improvement of the present application, the slag discharge mechanism includes a slag cleaning port matched with the slag filter screen, a slag discharge funnel connected to the slag cleaning port, and a slag collecting bag arranged at the bottom of the slag discharge funnel.

[0011] As a further improvement of the present application, the slag discharge funnel and the slag collection bag are arranged on the outer wall of the mixer barrel.

[0012] As a further improvement of the present application, the slag collecting bag is connected to the slag unloading hopper via a detachable structure.

[0013] As a further improvement of the present application, the self-cleaning residue slurrying and stirring device also includes a feed pipe and a water inlet pipe extending into the interior of the mixer barrel and respectively fixed above adjacent residue screens, and the feed pipe, the residue discharge mechanism and the water inlet pipe correspond one-to-one to the first screen position, the second screen position and the third screen position respectively.

[0014] As a further improvement of the present application, a scattering nozzle or a high-pressure nozzle is provided at the end of the water inlet pipe.

[0015] The beneficial effects of this application are:

[0016] The present application provides a self-cleaning filter residue pulping stirring device, comprising a mixer barrel, a rotating filter residue device and a stirring device arranged at the upper end of the mixer barrel, and a slag discharge mechanism arranged at one side of the mixer barrel; the rotating filter residue device comprises an electric drive turntable arranged at the middle of the upper end of the mixer barrel and a plurality of filter residue screens surrounding the electric drive turntable. The present application realizes the screening of feed impurities, the cleaning and collection of impurities on the screen, and the cleaning of the screen by partitioning, and each process is carried out synchronously with low interference. There is no need to stop feeding when cleaning impurities on the screen, thereby improving the pulping efficiency of the equipment.

[0017] The slag discharge mechanism of the present application has a simple structure. The impurities on the screen can be directly collected into the slag collection bag through the slag cleaning port and the slag discharge funnel. The slag collection bag is connected to the slag discharge funnel through a detachable structure. When the bag is full, it is packed and shoveled by vehicles in the station. The whole process does not pollute the working environment, and the slag discharge mechanism is easy to install and the cost is controllable.

[0018] The pulping water inlet of this application has both cleaning function and simple control and deployment. The water inlet pipe is equipped with a scattering nozzle or a high-pressure nozzle at the end according to the delivery pressure, and has the functions of screen washing and slurry concentration deployment, which can reduce the probability of screen blockage in the next step of solid or high-concentration liquid material feeding process and improve equipment reliability.

[0019] The materials applicable to this application are extensive, and the slag cleaning effect is guaranteed. For solid powder materials, they are pneumatically conveyed to the mixing barrel through the feeding pipeline. A filter residue sieve with a relatively large aperture can screen out large particle powder agglomerates, reducing the risk of pipeline blockage in the subsequent slurry pipeline transportation. For high-concentration two-phase flow materials, a filter residue sieve with a relatively small aperture can screen out various impurities mixed in the front-end process flow, reducing the probability of bottom hardening in the mixing barrel.

[0020] The above description is only an overview of the technical solution of this application. In order to be able to understand the technical means of this application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of this application more obvious and understandable, the specific embodiments of this application are specifically given below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of this application, the drawings used in this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is the front view of the self-cleaning filter residue pulping and mixing device in the embodiment of this application;

[0023] Figure 2 It is the top view of the self-cleaning filter residue pulping and mixing device in the embodiment of this application;

[0024] Figure 3 It is the perspective view of the self-cleaning filter residue pulping and mixing device in the embodiment of this application;

[0025] Figure 4 It is the structural schematic diagram of the filter residue sieve in the embodiment of this application;

[0026] Figure 5 It is the structural schematic diagram of the quick-release enclosure in the embodiment of this application;

[0027] Description of the reference numerals: 1. Mixing machine barrel body; 21. Electric drive turntable; 22. Filter residue sieve; 221. Bottom sieve; 222. Outer sieve body; 2221. Quick-release mortise; 223. Quick-release enclosure; 2231. Quick-release tenon; 31. Mixing drive motor; 32. Mixing shaft; 33. Mixing blades; 41. Slag cleaning port; 42. Discharge hopper; 43. Slag collection cloth bag; 5. Feeding pipeline; 6. Water inlet pipeline. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The embodiments of the technical solution of this application will be described in detail below with reference to the drawings. The following embodiments are only used to illustrate the technical solution of this application more clearly, so they are only examples and cannot be used to limit the protection scope of this application.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion.

[0030] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0031] In the description of the embodiments of this application, the term "plurality" means two or more (including two). Similarly, "multiple groups" means two or more groups (including two groups), and "multiple pieces" means two or more pieces (including two pieces).

[0032] In the description of the embodiments of this application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this application.

[0033] In the description of the embodiments of this application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0034] The existing pulping stirring and impurity removal device does not consider the entire process of impurity removal, cleaning, and cleaning. Prolonged use will cause impurities to clog the sieve mesh, affect the material export speed, resulting in large fluctuations in the concentration of the process output product and a decrease in the pulp preparation efficiency, and it cannot be used in industrial production operations for a long time.

[0035] In order to solve the technical problems of screen blockage, incomplete impurity cleaning and low efficiency existing in the impurity removal device in the existing beneficiation filling pulp making technology, the present application provides a self-cleaning filter residue pulp making stirring device, wherein, through zoning, the screening of feeding impurities, the cleaning and collection of impurities on the screen, and the cleaning of the screen are realized, so as to achieve the technical effects of effectively preventing screen blockage and improving the pulp making efficiency.

[0036] Please refer to Figure 1 , which is the front view of the self-cleaning filter residue pulp making stirring device provided by the embodiment of the present application. The device includes a mixer barrel body 1, a rotary filter residue device and a stirring device arranged at the upper end of the mixer barrel body 1, and a slag discharging mechanism arranged on one side of the mixer barrel body 1. With such a setting, the functions of filtration and stirring are integrated in one device, and continuous and efficient solid-liquid separation and pulp stirring are realized through the rotary filter residue and self-cleaning mechanisms.

[0037] Please refer to Figure 2 , the rotary filter residue device includes an electric drive turntable 21 arranged in the middle of the upper end of the mixer barrel body 1 and a plurality of filter residue screens 22 surrounding the electric drive turntable 21. The electric drive turntable 21 is connected to the filter residue screen 22 for exchanging the positions of the filter residue screens 22. A quick-release enclosure 223 is arranged on the side of the filter residue screen 22 away from the electric drive turntable 21.

[0038] Furthermore, in the embodiment of the present application, the number of the filter residue screens 22 is 3, which are respectively located at the first screen position, the second screen position and the third screen position, and the distribution mode is equally spaced distribution.

[0039] Specifically, in some embodiments of the present application, the first screen position, the second screen position and the third screen position respectively correspond to the feeding screen partition area, the slag cleaning area and the cleaning and concentration adjustment area; the electric drive turntable 21 drives the three equally spaced filter residue screens 22 to periodically switch to the feeding screen partition area, the slag cleaning area and the cleaning and concentration adjustment area, so as to realize the synchronous progress of impurity screening, cleaning of substances on the screen and screen flushing.

[0040] Furthermore, as Figures 4 to 5 shown, the filter residue screen 22 includes a bottom screen 221, and an outer screen body 222 is arranged around three sides. The quick-release enclosure 223 is connected to the outer screen body 222 through a mortise and tenon structure. Among them, quick-release tenons 2231 are respectively arranged at both ends of the quick-release enclosure 223, and quick-release mortises 2221 are respectively arranged at both ends of the outer screen body 222, and the quick-release tenons 2231 match the quick-release mortises 2221.

[0041] Furthermore, in the embodiment of the present application, as Figure 3 shown, the stirring device includes a stirring drive motor 31, a stirring shaft 32 and stirring blades 33; the electric drive turntable 21 is sleeved on the periphery of the stirring shaft 32.

[0042] Specifically, the stirring shaft 32 is cylindrical, and stirring blades 33 are provided thereon. The electric drive turntable 21 is of an annular structure and is driven to rotate by a motor through a transmission mechanism. The electric drive turntable 21 is sleeved around the stirring shaft 32 and is concentrically arranged therewith, with an annular gap left therebetween. The electric drive turntable 21 is supported on a bearing seat by bearings and is coaxially positioned relative to the stirring shaft 32. There is no mechanical connection between the electric drive turntable 21 and the stirring shaft 32, and the two can rotate independently.

[0043] Further, in the embodiment of the present application, as Figure 3 shown, the slag discharging mechanism includes a slag cleaning port 41 matching the filter residue screen 22, a slag discharging funnel 42 connected to the slag cleaning port 41, and a slag collecting cloth bag 43 arranged at the bottom of the slag discharging funnel 42. The slag discharging funnel 42 and the slag collecting cloth bag 43 are arranged on the outer wall of the mixer barrel 1. The slag collecting cloth bag 43 is connected to the slag discharging funnel 42 through a detachable structure. The slag discharging funnel 42 directly communicates the slag cleaning port 41 with the slag collecting cloth bag 43 to achieve sealed collection of impurities.

[0044] Specifically, the impurities on the screen can be directly collected into the slag collecting cloth bag 43 arranged on the ground through the slag cleaning port 41 and the slag discharging funnel 42. The slag collecting cloth bag 43 is installed through U-shaped hooks arranged on both sides of the bottom of the slag discharging funnel 42. After the bag is full, it is packed and shoveled and processed by the in-station vehicle. The whole process does not pollute the operating environment, and the slag discharging mechanism is convenient to install and the cost is controllable.

[0045] Further, in the embodiment of the present application, as Figure 2 shown, the self-cleaning filter residue pulping stirring device further includes a feed pipe 5 and a water inlet pipe 6 extending into the mixer barrel 1 and respectively fixed above adjacent filter residue screens 22. A scattering nozzle or a high-pressure nozzle is arranged at the end of the water inlet pipe 6 for flushing the filter residue screen 22 and adjusting the slurry concentration.

[0046] The feed pipe 5, the slag discharging mechanism, and the water inlet pipe 6 respectively correspond to the first screen position, the second screen position, and the third screen position one by one, that is, the feed pipe 5, the slag discharging mechanism, and the water inlet pipe 6 are respectively located in the feed screen partition area, the slag cleaning area, and the cleaning and concentration adjustment area.

[0047] Specifically, in some embodiments of the present application, the feed pipe 5 is arranged above the first screen position area. For solid powder materials, they are pneumatically conveyed into the mixer barrel 1 by the feed pipe 5. A filter residue screen filter with a larger aperture can screen out large particle powder agglomerates, reducing the risk of blockage in the subsequent slurry pipeline transportation; for high-concentration two-phase flow materials, a filter residue screen filter with a smaller aperture can screen out various impurities mixed in the front-end process flow, reducing the probability of bottom plate hardening of the mixer barrel 1.

[0048] The slag discharging mechanism is arranged outside the second screening position. When the filter residue screen 22 reaches the position where the slag discharging mechanism is located, the quick-release enclosure 223 is opened through the mortise and tenon structure, the impurities on the screen are cleaned, and the slag is discharged by its own weight through the slag discharging funnel 42 arranged on the outer wall of the barrel into the slag collecting cloth bag 43 installed on the ground for collection, so as to complete the slag discharging operation.

[0049] The water inlet pipe 6 is arranged above the third screening position area. At the end according to the conveying pressure, a scattering nozzle or a high-pressure nozzle is installed, which has the functions of screen washing and slurry concentration adjustment at the same time. It can reduce the probability of screen blockage during the feeding process of solid or high-concentration liquid materials in the next step and improve the reliability of the equipment.

[0050] Please refer to Figures 1 to 5 , according to one or more embodiments of the present application, the self-cleaning filter pulp pulping and stirring device provided by the present application solves the problems of screen blockage, incomplete impurity cleaning and low efficiency caused by downtime for slag cleaning in the prior art through the rotary filter residue device and the functional area design. Through the collaborative design of the rotary filter residue device and the three screening positions, the electric drive turntable 21 drives the three equally spaced filter residue screens 22 to periodically switch to the feeding screen area, the slag cleaning area and the cleaning and concentration adjustment area, realizing the synchronous progress of impurity screening, cleaning of substances on the screen and screen washing, without interrupting the feeding, and significantly improving the pulping efficiency. The slag cleaning port 41 and the detachable slag collecting cloth bag 43 are directly connected through the slag discharging funnel 42, realizing the instant collection and airtight transfer of impurities, eliminating secondary pollution, and at the same time simplifying the maintenance process. Through the dynamic self-cleaning mechanism, when the filter residue screen 22 switches to the cleaning and concentration adjustment area, the scattering nozzle or the high-pressure nozzle at the end of the water inlet pipe 6 washes the screen to remove the residual impurities, avoid screen hole blockage, and ensure the long-term reliable operation of the equipment.

[0051] The working principle of the self-cleaning filter residue pulping and stirring device provided by the present application is described below:

[0052] The solid or high-concentration two-phase flow material to be pulped is transported through the feed pipeline 5 to the residue screen 22 at the first screening position of the device. After impurities and large particle insoluble lumps are removed by the special screen mesh, it enters the mixer barrel 1 for pulping operation. When the residence time of the residue screen 22 at the feed pipeline 5 reaches the set value (set according to the impurity content, switched when the filter holes of the filter mesh are blocked), the electric drive turntable 21 rotates clockwise to swap the position of the residue screen 22. At the second screening position, the quick-release enclosure 223 outside the residue screen 22 is manually opened to clean the impurities on the screen, and the impurities are discharged by self-weight through the slag discharge funnel 42 arranged on the outer wall of the barrel to the slag collection cloth bag 43 installed on the ground for collection. After the impurities on the residue screen 22 are cleaned, the electric drive turntable 21 rotates clockwise again to swap the position of the residue screen 22, and the pulping concentration adjustment and water inlet operation and screen cleaning operation are carried out at the third screening position. Through the cyclic switching of the screen positions, the present application realizes the functional zoning of residue, discharging, water inlet cleaning in the pulping impurity process, and can select the screen aperture size and cyclic switching time according to the impurity characteristics to ensure the slag cleaning effect.

[0053] It should be noted that the present application is not limited to the above embodiments. The above embodiments are only examples, and the embodiments with the same structure and the same effect as the technical idea within the technical solution scope of the present application are included in the technical scope of the present application. In addition, within the scope of not departing from the main idea of the present application, various deformations that can be thought of by those skilled in the art are applied to the embodiments, and other ways constructed by combining some constituent elements in the embodiments are also included in the scope of the present application.

Claims

1. A self-cleaning filter residue pulping and stirring device, characterized in that It includes a blender barrel body, a rotary slag filtering device and a stirring device arranged at the upper end of the blender barrel body, and a slag discharging mechanism arranged on one side of the blender barrel body; the rotary slag filtering device includes an electric drive turntable arranged in the middle of the upper end of the blender barrel body and a plurality of slag filtering screens surrounding the electric drive turntable.

2. The self-cleaning filter residue pulping and stirring device according to claim 1, characterized in that The stirring device includes a stirring drive motor, a stirring shaft and stirring blades; the electric drive turntable is sleeved on the periphery of the stirring shaft.

3. The self-cleaning filter residue pulping stirring device according to claim 2, wherein The electric drive turntable is connected to the slag filtering screen and is used to exchange the positions of the slag filtering screens.

4. The self-cleaning filter residue pulping and stirring device according to claim 3, wherein, A quick-release enclosure is arranged on the side of the slag filtering screen away from the electric drive turntable.

5. The self-cleaning filter residue pulping and stirring device according to claim 1, wherein, The number of the slag filtering screens is 3, which are respectively located at the first screen position, the second screen position and the third screen position, and the distribution mode is equally spaced distribution.

6. The self-cleaning filter residue pulping and stirring device according to claim 1, characterized in that, The slag discharging mechanism includes a slag cleaning port matching the slag filtering screen, a slag discharging funnel connected to the slag cleaning port, and a slag collecting cloth bag arranged at the bottom of the slag discharging funnel.

7. The self-cleaning filter residue pulping stirring device according to claim 6, characterized in that, The slag discharging funnel and the slag collecting cloth bag are arranged on the outer wall of the blender barrel body.

8. The self-cleaning filter residue pulping and stirring device according to claim 6, characterized in that, The slag collecting cloth bag is connected to the slag discharging funnel through a detachable structure.

9. The self-cleaning filter residue pulping stirring device according to claim 5, wherein, The self-cleaning slag filtering and pulping stirring device further includes a feed pipe and a water inlet pipe extending into the blender barrel body and respectively fixed above adjacent slag filtering screens, and the feed pipe, the slag discharging mechanism and the water inlet pipe respectively correspond to the first screen position, the second screen position and the third screen position one by one.

10. The self-cleaning filter residue pulping and stirring device according to claim 9, characterized in that, A scattering nozzle or a high-pressure nozzle is arranged at the end of the water inlet pipe.

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