Slag dehydration device

By combining multi-layer screens and vibrators, the slag particles are processed in layers and grades, solving the problems of incomplete dewatering and high cost in existing technologies, thus improving the quality of slag dewatering and reducing production costs.

CN223775338UActive Publication Date: 2026-01-09ZHUHAI DONGJIANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422900855.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2026-01-09
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

Existing slag dewatering devices cannot screen slag according to its size and structure, resulting in incomplete dewatering and high energy consumption, material costs, and maintenance costs.

Method used

A multi-layer screen structure is adopted, including a first screen, a second screen and a third screen, with the screen aperture gradually decreasing. The screen is driven to vibrate by a vibrator to achieve stratified and graded treatment of slag particles.

Benefits of technology

It improves the quality and applicability of slag dewatering, reduces production costs, and avoids the problem of poor dewatering effect caused by the mixing of slags of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a slag dewatering device which comprises a shell, a slag dewatering device and a slag dewatering device. The slag feeding pipe is fixedly connected with the shell; the base is fixedly connected with the shell, and the shell is arranged between the slag feeding pipe and the base; the external valve is communicated with the accommodating cavity; the dehydration assembly is arranged in the accommodating cavity; wherein the dewatering assembly comprises a first screen mesh and a second screen mesh, and the distance between the first screen mesh and the slag feeding pipe is smaller than the distance between the second screen mesh and the slag feeding port; the first screen is provided with a plurality of first screen holes, the second screen is provided with a plurality of second screen holes, and the minimum hole diameter of the first screen holes is larger than the maximum hole diameter of the second screen holes. The dewatering assembly further comprises a vibrator, and the vibrator is configured to drive the first screen and the second screen to vibrate at least in one dimension relative to the shell in the containing cavity. By means of the technical scheme, the furnace slag particles are treated in a layering and grading mode, and the dehydration quality of the furnace slag particles is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of slag dewatering, in particular to a slag dewatering device. BACKGROUND

[0002] At present, slag dewatering devices are needed in the metallurgical industry, household garbage treatment industry and the like, especially as the state attaches more and more importance to environmental protection, higher requirements are put forward for the technology involved in the slag dewatering device. However, after the slag in part of the industry is salvaged by a slag salvaging machine, a large amount of water will be left, and as time goes by, the ton bag will leak slag waste liquid during ton bag packaging, causing environmental pollution. Therefore, a device for dewatering water in the slag is designed, and the existing slag dewatering device cannot screen the slag according to the size and structure of the slag, or needs a pre-process of slag crushing treatment, but there are problems such as high energy consumption and unstable dewatering quality.

[0003] Chinese patent document CN202023104410.0 discloses a slag dewatering screen for a garbage power plant, which comprises an outer cylinder and an inner dewatering cylinder screen arranged coaxially, a machine box is installed at the bottom of the inner dewatering cylinder screen, a motor is installed in the machine box, a direction rotating shaft is connected to the output shaft of the motor, two groups of fixed frames arranged in parallel are installed in the inner dewatering cylinder screen, a rotating sleeve ring is installed in the middle of the fixed frame and is matched with the cross-sectional size of the direction rotating shaft, and a slag discharge door is hinged to the inner wall of the inner dewatering cylinder screen.

[0004] The prior art separates water in the slag by the principle of centrifugal force, but in the actual production process, the size of the slag particles is inconsistent, causing incomplete dewatering of part of the large-particle slag, at the same time, the high-speed rotating slag has high requirements for the material strength of the outer wall of the equipment, increasing the material cost of the slag dewatering device, and the maintenance cost of the slag dewatering device is high. Content of the utility model

[0005] The present application provides a slag dewatering device, which improves the application range and quality of slag dewatering to at least partially solve the above technical problems.

[0006] In order to achieve the above purpose, a slag dewatering device is provided, which comprises:

[0007] A shell forms a containing cavity;

[0008] A slag feeding pipe is fixedly connected with the shell;

[0009] A base is fixedly connected with the shell, and the shell is arranged between the slag feeding pipe and the base;

[0010] An external valve is in communication with the containing cavity;

[0011] a dewatering assembly disposed in the accommodating cavity;

[0012] wherein the dewatering assembly comprises a first screen and a second screen, the first screen is closer to the slag feeding pipe than the second screen is to the slag feeding port;

[0013] the first screen is provided with a plurality of first screen holes, the second screen is provided with a plurality of second screen holes, the minimum diameter of the first screen holes is greater than the maximum diameter of the second screen holes;

[0014] the dewatering assembly further comprises:

[0015] a vibrator configured to drive the first screen and the second screen to vibrate at least in a single dimension relative to the shell in the accommodating cavity.

[0016] Optionally,

[0017] the slag dewatering device further comprises:

[0018] a third screen disposed on a side of the second screen away from the first screen, wherein the third screen is provided with a plurality of third screen holes, and the minimum diameter of the second screen holes is greater than the maximum diameter of the third screen holes;

[0019] the vibrator is configured to drive the third screen to vibrate at least in a single dimension relative to the shell.

[0020] Optionally,

[0021] the diameters of the plurality of first screen holes are the same, the diameters of the plurality of second screen holes are the same, and the diameters of the plurality of third screen holes are the same.

[0022] Optionally,

[0023] along the side edge of the first screen, the diameters of the first screen holes gradually decrease from the middle of the first screen to the edge of the first screen.

[0024] Optionally,

[0025] along the side edge of the second screen, the diameters of the second screen holes gradually decrease from the middle of the second screen to the edge of the second screen.

[0026] Optionally,

[0027] along the side edge of the third screen, the diameters of the third screen holes gradually decrease from the middle of the third screen to the edge of the third screen.

[0028] Optionally,

[0029] The slag feeding pipe is provided with a feeding port at one end away from the shell, and the feeding port is funnel-shaped.

[0030] Optionally,

[0031] The shell comprises a conveying port.

[0032] The slag dewatering device further comprises:

[0033] A conveying assembly is movably connected to the dewatering assembly, and the conveying assembly is configured to drive the dewatering assembly to at least partially extend out of the containing cavity through the conveying port.

[0034] Optionally,

[0035] The conveying assembly comprises a conveying motor and a conveying track, and the conveying track is connected to the first screen and / or the second screen and / or the third screen.

[0036] Optionally,

[0037] The conveying assembly further comprises a conveying belt, and the conveying belt is at least partially arranged in the containing cavity and arranged on a side of the third screen away from the second screen.

[0038] In the slag dewatering device of the embodiment, the shell forms a containing cavity; the slag feeding pipe is fixedly connected to the shell; the base is fixedly connected to the shell, and the shell is arranged between the slag feeding pipe and the base; the external valve is in communication with the containing cavity; the dewatering assembly is arranged in the containing cavity; wherein the dewatering assembly comprises a first screen and a second screen, the distance between the first screen and the slag feeding pipe is less than the distance between the second screen and the slag feeding port; the first screen is provided with a plurality of first screen holes, and the second screen is provided with a plurality of second screen holes, the minimum aperture of the first screen holes is greater than the maximum aperture of the second screen holes; the dewatering assembly further comprises a vibrator configured to drive the first screen and the second screen to vibrate in at least a single dimension relative to the shell in the containing cavity. Through the above technical solution, layered and graded treatment of slag particles is realized, and the dewatering quality of slag particles is improved.

[0039] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0041] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0042] Figure 1 This is a schematic diagram of the overall structure of the slag dewatering device provided in an exemplary embodiment of this disclosure;

[0043] Figure 2 This is another schematic diagram of the slag dewatering device provided in an exemplary embodiment of this disclosure;

[0044] Figure 3 This is a schematic diagram of the first screen structure provided in an exemplary embodiment of this disclosure;

[0045] Figure 4 This is a schematic diagram of the second screen structure provided in an exemplary embodiment of this disclosure;

[0046] Figure 5 This is a schematic diagram of the third screen structure provided in an exemplary embodiment of this disclosure;

[0047] Figure 6 This is a schematic diagram of another screen structure provided in an exemplary embodiment of this disclosure;

[0048] Explanation of reference numerals in the attached figures:

[0049] 100. Slag dewatering device;

[0050] 110. Housing; 111. Receiving cavity; 112. Transfer port;

[0051] 120. Slag feed pipe; 121. Feed inlet;

[0052] 130. Base;

[0053] 140. External valve;

[0054] 150. Dewatering assembly; 151. First screen; 151a. First screen aperture; 152. Second screen; 152a. Second screen aperture; 153. Third screen; 153a. Third screen aperture; 154. Vibrator;

[0055] 160. Conveying assembly; 161. Conveying motor; 162. Conveying track; 163. Conveying belt; Detailed Implementation

[0056] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0057] Reference Figures 1 to 6 This application provides a slag dewatering device 100, including: a shell 110, a slag feed pipe 120, a base 130, an external valve 140, and a dewatering component 150.

[0058] In some embodiments, refer to Figure 1 and Figure 2 The housing 110 is positioned between the slag feed pipe 120 and the base 130. The housing 110 is fixedly connected to the slag feed pipe 120, which is located on the side of the housing 110 away from the ground, i.e., on the upper side of the housing 110. Here, "upper and lower" refers to the vertical position of the slag dewatering device 100 under normal operating conditions. The housing 110 forms a receiving cavity 111. An external valve 140 is fixedly connected to the housing 110 and communicates with the receiving cavity 111. The external valve 140 is located at the bottom of the housing 110, so that the water generated during the slag dewatering process can be collected in the receiving cavity 111 and discharged through the external valve 140. The external valve 140 can be connected to a ton bag (not shown in the figure) to collect the generated water in the ton bag.

[0059] The housing 110 is fixedly connected to the base 130, which is used to support the housing 110. The base 130 can be equipped with shock-absorbing pads or casters (not shown in the figure) according to actual production needs, so as to meet the movement needs of the slag dewatering device 100 during operation or reduce the impact on the surrounding environment.

[0060] A dewatering assembly 150 is disposed within a receiving cavity 111 and is configured to remove moisture from the slag. In this application, the dewatering assembly 150 includes a first screen 151 and a second screen 152. The distance between the first screen 151 and the slag feed pipe 120 is greater than the distance between the second screen 152 and the slag feed pipe 120; in other words, the first screen 151 is disposed above the second screen 152. The first screen 151 is uniformly provided with a plurality of first screen holes 151a, and the second screen 152 is also uniformly provided with second screen holes 152a. The minimum aperture of the first screen holes 151a is greater than the minimum aperture of the second screen holes 152a. The dewatering assembly 150 is further provided with a vibrator 154, which is connected to the first screen 151 and the second screen 152. Several individual vibrators 154 may be selected and fixedly connected to the first screen 151 and the second screen 152 respectively.

[0061] The slag dewatering device 100 of this application allows slag to enter the device through a slag feed pipe 120 and fall onto a first screen 151. A vibrator 154 vibrates the first screen 151, causing it to vibrate in at least one dimension, such as moving left and right within the receiving cavity 111. To further dewater the slag, the vibrator 154 also causes the first screen 151 to move up, down, left, and right simultaneously. This vibration and movement of the screen 151 removes moisture from the slag, achieving dewatering. Since the slag particles vary in size and shape, the first screen 151 and the second screen 152 separate the particles through the different apertures of the first screen holes 151a and 152a. Larger slag particles fall onto the first screen 151, while smaller particles fall onto the second screen 152. Moisture can be discharged into a ton bag through an external valve 140, thereby achieving the treatment of slag.

[0062] In some embodiments of this application, reference is made to Figure 5 The slag dewatering device 100 also includes a third screen 153, which is located on the side of the second screen 152 away from the first screen 151. In other words, the second screen 152 is located between the first screen 151 and the third screen 153. The third screen 153 is provided with a plurality of third screen holes 153a. The minimum aperture of the second screen hole 152a is larger than the maximum aperture of the third screen hole 153a. During the slag dewatering process, the third screen 153 can be connected to a vibrator 154 according to actual working needs. The vibrator 154 causes the third screen 153 to vibrate relative to the housing 110 in at least one dimension.

[0063] When the slag dewatering device 100 of this application is in operation, since the first screen 151, the second screen 152 and the third screen 153 are all connected to independent vibrators 154, during the slag dewatering process, the first screen 151, the second screen 152 and the third screen 153 can be vibrated simultaneously, or any one or two of them can be selected to vibrate, according to actual needs.

[0064] In some embodiments of this application, the first screen 151 has the same diameter for all first screen holes 151a, meaning the first screen holes 151a are screen holes of the same size and structure; the second screen 152 has the same diameter for all second screen holes 152a, meaning the second screen holes 152a are screen holes of the same size and structure; the third screen 153 has the same diameter for all third screen holes 153a, meaning the third screen holes 153a are screen holes of the same size and structure. The shapes of the first screen holes 151a, the second screen holes 152a, and the third screen holes 153a can be circular, rectangular, or other regular polygons, and are not limited here. By restricting the apertures of the first sieve aperture 151a, the second sieve aperture 152a, and the third sieve aperture 153a, larger solid slag particles will settle onto the first sieve 151, solid slag particles smaller than the aperture of the first sieve aperture 151a will enter the upper side of the second sieve 152, and solid slag particles smaller than the aperture of the second sieve aperture 152a will enter the upper side of the third sieve 153. This achieves the separation of slag particles of different sizes and dewatering of slag particles of different sizes.

[0065] In some embodiments of this application, reference is made to Figure 6 Along the side of the first screen 151, the aperture of the first screen hole 151a gradually decreases from the middle of the first screen 151 to the edge of the first screen 151; along the side of the second screen 152, the aperture of the second screen 152 gradually decreases from the middle of the second screen 152 to the edge of the first screen 151; along the side of the third screen 153, the aperture of the third screen hole 153a gradually decreases from the middle of the third screen 153 to the edge of the third screen 153. During the slag dewatering process, as the screen vibrates, larger slag particles, due to their greater weight, tend to gather towards the center of the screen, while smaller particles, with their relatively smaller weight, tend to distribute towards the sides. To better separate the slag particles, the screen openings of the first screen 151, the second screen 152, and the third screen 153 are designed with gradually varying hole sizes. This allows slag particles of similar size to gather together, thus avoiding the mixing of slag particles of different sizes during the slag dewatering process and preventing the technical problem of poor dewatering effect in some slag.

[0066] In some embodiments of this application, reference is made to Figure 1The slag feed pipe 120 is provided with a feed inlet 121 at the end away from the shell 110. The feed inlet 121 is designed in the shape of a funnel to facilitate the feeding of slag into the slag dewatering device 100.

[0067] In some embodiments of this application, the housing 110 includes a conveying port 112, and the slag dewatering device 100 includes a conveying assembly 160. The conveying assembly 160 is movably connected to the dewatering assembly 150, and the transmission assembly is configured to drive the dewatering assembly 150 at least partially through the conveying port 112 out of the receiving cavity 111. As the amount of slag fed into the slag dewatering device 100 increases, the slag will gradually deposit on the screen, thus requiring cleaning of the slag on the screen. The conveying assembly 160 includes a conveying motor 161 and a conveying track 162. The conveying track 162 is connected to the first screen 151, the second screen 152, and the third screen 153. The first screen 151, the second screen 152, and the third screen 153 are extended out of the receiving cavity 111 through the conveying port 112 via the conveying motor 161 and the conveying track 162, thereby cleaning the slag deposited on the first screen 151, the second screen 152, and the third screen 153. A collection box (not shown in the figure) can be placed next to the slag dewatering device 100 to collect the slag deposited on the first screen 151, the second screen 152, and the third screen 153 respectively.

[0068] In some embodiments of this application, the conveyor motor 161 further includes a conveyor belt 163, which is disposed within the receiving cavity 111 and is disposed on the side of the third screen 153 away from the second screen 152, that is, the conveyor belt 163 is disposed on the lower side of the third screen 153. Fine slag passing through the third screen 153 is collected, and the collected slag is transported to the collection box by the conveyor belt 163.

[0069] The slag dewatering device 100 of this application solves the technical problem of poor dewatering quality of some slag particles by performing stratified and graded treatment of slag particles, and can also reduce the production cost of the slag dewatering device 100.

[0070] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0071] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0072] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0073] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A slag dewatering device, characterized in that, include: The shell (110) forms a cavity (111); The slag feed pipe (120) is fixedly connected to the shell (110); A base (130) is fixedly connected to the housing (110), and the housing (110) is disposed between the slag feed pipe (120) and the base (130); An external valve (140) is connected to the receiving cavity (111); A dehydration assembly (150) is disposed within the receiving cavity (111); The dewatering component (150) includes a first screen (151) and a second screen (152), wherein the distance between the first screen (151) and the slag feed pipe (120) is less than the distance between the second screen (152) and the slag feed inlet (121). The first screen (151) is provided with a plurality of first screen holes (151a), and the second screen (152) is provided with a plurality of second screen holes (152a). The minimum aperture of the first screen hole (151a) is greater than the maximum aperture of the second screen hole (152a). The dehydration assembly (150) also includes: A vibrator (154) is configured to drive the first screen (151) and the second screen (152) to vibrate relative to the housing (110) in at least a single dimension within the receiving cavity (111).

2. The slag dewatering device according to claim 1, characterized in that, The slag dewatering device (100) also includes: A third screen (153) is disposed on the side of the second screen (152) away from the first screen (151). The third screen (153) is provided with a plurality of third screen holes (153a), and the minimum aperture of the second screen hole (152a) is greater than the maximum aperture of the third screen hole (153a). The vibrator (154) is configured to drive the third screen (153) so that the third screen (153) vibrates relative to the housing (110) in at least a single dimension.

3. The slag dewatering device according to claim 2, characterized in that, A plurality of the first sieve holes (151a) have the same aperture, a plurality of the second sieve holes (152a) have the same aperture, and a plurality of the third sieves (153) have the same aperture.

4. The slag dewatering device according to claim 2, characterized in that, Along the side of the first screen (151), the aperture of the first screen hole (151a) gradually decreases from the middle of the first screen (151) to the edge of the first screen (151).

5. The slag dewatering device according to claim 4, characterized in that, Along the side of the second screen (152), the aperture of the second screen hole (152a) gradually decreases from the middle of the second screen (152) to the edge of the first screen (151).

6. The slag dewatering device according to claim 5, characterized in that, Along the side of the third screen (153), the aperture of the third screen hole (153a) gradually decreases from the middle of the third screen (153) to the edge of the third screen (153).

7. The slag dewatering device according to claim 5, characterized in that... The slag feed pipe (120) has a feed inlet (121) at one end away from the shell (110), and the feed inlet (121) is funnel-shaped.

8. The slag dewatering apparatus according to any one of claims 1 to 7, characterized in that, The housing (110) includes: a transfer port (112); The slag dewatering device (100) also includes: A conveying assembly (160) is movably connected to the dehydration assembly (150), the conveying assembly (160) being configured to drive the dehydration assembly (150) at least partially through the conveying port (112) out of the receiving cavity (111).

9. The slag dewatering device according to claim 8, characterized in that, The conveying assembly (160) includes a conveying motor (161) and a conveying track (162), the conveying track being connected to the first screen (151) and / or the second screen (152) and / or the third screen (153).

10. The slag dewatering device according to claim 9, characterized in that, The conveying assembly (160) further includes a conveyor belt (163) which is at least partially disposed within the receiving cavity (111) and is disposed on the side of the third screen (153) away from the second screen (152).

Citation Information

Patent Citations

  • Slag dewatering screen for garbage power plant

    CN213873457U