Overflow sampling device of cyclone

Abstract

The utility model discloses an overflow sampling device of a cyclone. The overflow sampling device comprises a base, an overflow box, a slurry discharge pipe and a baffle assembly, the base and the cyclone main body are adjacently arranged on the cyclone platform, and the overflow box is arranged on the base; a sampling opening is formed in the center of the upper portion of the overflow box, a slurry discharging opening is formed in the lower portion of one side of the overflow box, the front end of the slurry discharging pipe is connected with the slurry discharging opening, and the baffle assembly comprises a baffle A and a baffle B which are both arranged in the overflow box. The overflow sampling device of the cyclone is simple in structure and convenient to sample, sampling at the overflow pipe is not needed any more, the safety of the sampling process is improved, and meanwhile the labor intensity of detection personnel is reduced; a sample in the overflow box is jointly composed of the cyclone sets and can better represent an overflow sample in the time, the detection result is more representative, the time of the detection sampling stage is greatly shortened, meanwhile, a screen is further arranged at the position of a pulp discharging pipe in the overflow box, and the fineness of ore pulp entering a flotation system is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cyclone sampling, in particular to an overflow sampling device for a cyclone. Background Art

[0002] The stable classification effect of the cyclone is the premise to ensure the efficient operation of grinding, improve the flotation efficiency and concentrate grade, and reduce the production cost; in actual production, in order to ensure the classification effect of the cyclone, manual sampling of the classified overflow sample and the concentration kettle measurement method are commonly used to detect the classification fineness. When sampling, since the overflow pipe of the cyclone is at the top of the cyclone group, manual workers need to open the central cover plate of the cyclone through a ladder or a platform and obtain the test sample from the overflow pipe of the cyclone group. Sampling also requires specific tools, and there are unsafe factors in this process. To always ensure the classification effect, the overflow sample needs to be collected multiple times a day, and the multiple up and down movements also impose a significant workload on the testers; a cyclone usually has 4 to 6 cyclone groups, and the pulp is evenly distributed to each working cyclone group through a pulp distributor. Each cyclone group operates independently. As a key component affecting the classification effect, the sand settling nozzle will have varying degrees of wear during long-term use. When the wear degree is too high, it needs to be replaced, which will also result in different classification effects of different cyclone groups. When sampling, only detecting one group of sulfur separation devices cannot well represent the overall classification effect of the cyclone group. If each cyclone group is detected, it takes a long time, the work intensity is high, and at the same time, the test results cannot be timely feedback, resulting in a lag in the adjustment time and affecting the flotation index.

[0003] The pulp performs high-speed centrifugal motion inside the cyclone group. In actual production, the overflow of the cyclone will splash, which also poses a significant challenge to maintaining the on-site hygiene. The middle part above the cyclone is often blocked, which also makes sampling very inconvenient. Summary of the Invention

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an overflow sampling device for a cyclone, which improves the safety of the sampling process, reduces the labor intensity of the testers, shortens the sampling time for detection, and further ensures the sampling accuracy.

[0005] The technical solution adopted by the utility model is as follows:

[0006] An overflow sampling device for a cyclone includes a base, an overflow box, a slurry discharge pipe, and a baffle assembly;

[0007] The base is adjacent to the cyclone body and is arranged on the cyclone platform, and the overflow box is arranged on the base; a rectangular slurry inlet is arranged on the front side of the overflow box, and the slurry inlet is communicated with the cyclone body through a square pipeline. A sampling port is arranged at the center above the overflow box, and a movable cover plate is arranged on the sampling port. A slurry discharge port is arranged at the lower part of one side of the overflow box, the front end of the slurry discharge pipe is connected to the slurry discharge port, and the rear end of the slurry discharge pipe is connected to the subsequent flotation system through a pipeline;

[0008] The baffle assembly includes baffle A and baffle B, and both baffle A and baffle B are arranged in the overflow box; there are four baffle As, and the baffle As surround the four sides of the slurry inlet. The width of the baffle on the upper side of the slurry inlet is greater than the width of the baffle on the lower side; the baffle B is horizontally arranged on the inner walls of the left, right, and rear three sides of the overflow box, and the baffle B is located between the upper baffle of the baffle A and the upper side edge of the slurry inlet; a gap corresponding to the sampling port is left between the baffle B and the upper baffle of the baffle A.

[0009] Specifically, lifting lugs are further arranged on the outer side of the overflow box; this facilitates the adjustment of the installation position of the overflow box.

[0010] Specifically, a screen is arranged at the slurry discharge port in the overflow box.

[0011] Specifically, the movable cover plate is arranged on the sampling port of the overflow box through a hinge, and a handle is arranged on the movable cover plate.

[0012] Specifically, the slurry discharge pipe is a pipe with an elbow.

[0013] Specifically, the upper and lower side plates of the baffle A in the horizontal direction and the baffle B are both made of perforated plate members.

[0014] Specifically, the width of the upper baffle of the slurry inlet is 1.5 - 2 times the width of the lower baffle.

[0015] Due to the adoption of the above - mentioned technical solution, the utility model has the following advantages:

[0016] The cyclone overflow sampling device of the utility model has a simple structure and convenient sampling. There is no need to sample at the overflow pipe anymore, which improves the safety of the sampling process and reduces the labor intensity of the detection personnel; moreover, the samples in the overflow box are jointly composed of each cyclone group, which can better represent the overflow sample at that time, and the detection results are more representative, and the detection sampling stage time is also greatly shortened. At the same time, a screen is also arranged at the slurry discharge pipe inside the overflow box, which further ensures the fineness of the pulp entering the flotation system. Description of the Drawings

[0017] Figure 1 It is the overall schematic diagram of the utility model.

[0018] Figure 2It is a schematic diagram of the internal structure of the present utility model.

[0019] Figure 3 It is a schematic diagram of the internal structure of the present utility model in the top view direction.

[0020] Figure 4 It is a schematic diagram of the present utility model arranged on the cyclone platform.

[0021] In the figure: 1 - base, 2 - overflow box, 21 - slurry inlet, 3 - discharge pipe, 4 - baffle A, 5 - baffle B, 6 - movable cover plate, 7 - lifting lug, 8 - screen, 9 - handle. Specific embodiments

[0022] The present utility model will be further explained below in conjunction with the drawings and embodiments. The protection scope of the present utility model cannot be limited thereby. The purpose of disclosing the present utility model is to protect all technical improvements within the scope of the present utility model.

[0023] Combined with the attached Figures 1-4 A cyclone overflow sampling device shown in the figure includes a base 1, an overflow box 2, a discharge pipe 3 and a baffle assembly.

[0024] The base 1 is arranged adjacent to the cyclone main body on the cyclone platform, and the overflow box 2 is arranged on the base 1; a rectangular slurry inlet 21 is arranged on the front side of the overflow box 2, and the slurry inlet 21 is communicated with the cyclone main body through a square pipe. A sampling port is arranged at the center above the overflow box 2, and a movable cover plate 6 is arranged on the sampling port through a hinge. A handle 9 is arranged on the movable cover plate 6; a discharge port is arranged at the lower part of one side of the overflow box 2, and a screen 8 is arranged at the inner discharge port; the discharge pipe 3 is a pipe with an elbow. The front end of the discharge pipe 3 is connected to the discharge port, and the rear end of the discharge pipe 3 is connected to the subsequent flotation system through a pipe; a lifting lug 7 is also arranged on the outer side of the overflow box 2; which is convenient for adjusting the installation position of the overflow box 2.

[0025] The baffle assembly includes a baffle A 4 and a baffle B 5, and both the baffle A 4 and the baffle B 5 are arranged in the overflow box 2; there are four baffle A 4, and the baffle A 4 surrounds the four sides of the slurry inlet 21. The width of the baffle on the upper side of the slurry inlet 21 is twice the width of the lower side baffle, and both the upper and lower side plates are plate members with holes; the baffle B 5 is horizontally arranged on the inner walls of the left, right and rear three sides of the overflow box 2. The baffle B 5 is located between the upper side baffle of the baffle A 4 and the upper side edge of the slurry inlet 21, and a gap corresponding to the sampling port is left between the baffle B 5 and the upper side baffle of the baffle A 4; the baffle B is also a plate member with holes to prevent the ore pulp from accumulating on the baffle.

[0026] Before use, seal the original slurry outlet at the lower part of the hydrocyclone body, open a square slurry outlet on the hydrocyclone body that is consistent with the inlet 21 of the overflow tank 2, and weld a square pipe between the hydrocyclone body and the inlet 21 of the overflow tank 2. Connect the discharge pipe 3 on the overflow tank 2 to the subsequent flotation system through a pipe; fix the overflow tank 2 on the hydrocyclone platform through the base 1 to ensure that the overflow tank 2 does not shake when the slurry in the overflow tank 2 is unstable, and increase the overall stability. During operation, the pulp after the hydrocyclone classification overflow enters the overflow tank 2 through the inlet 21 of the overflow tank 2. Under the guiding action of the baffle A 4 and the baffle B 5, the slurry is concentrated, avoiding splashing caused by excessive divergence, and avoiding the slurry from splashing out when opening the movable cover plate 6 for sampling or observation. The slurry in the overflow tank 2 enters the subsequent flotation system through the discharge pipe 3; a slurry sample within this time is obtained in the overflow tank 2, optimizing the sampling process while improving the detection efficiency; after working for a period of time, clean the deposited slag in the overflow tank 2 through the sampling port, which is convenient to use.

[0027] The parts not detailed in the present utility model are prior art.

[0028] The embodiments selected in this article to disclose the invention purpose of the present utility model are considered appropriate at present. However, it should be understood that the present utility model is intended to include all changes and improvements of all embodiments within the scope of this concept and utility model.

Claims

1. A cyclone overflow sampling device, characterized in that: It includes a base, an overflow box, a slurry discharge pipe and a baffle assembly; The base is arranged on the hydrocyclone platform adjacent to the hydrocyclone body, and the overflow box is arranged on the base; a rectangular slurry inlet is arranged on the front side of the overflow box, and the slurry inlet is connected to the hydrocyclone body through a square pipe; a sampling port is arranged at the center of the top of the overflow box, and a movable cover is arranged on the sampling port; a slurry discharge port is arranged on the lower part of one side of the overflow box, and the front end of the slurry discharge pipe is connected to the slurry discharge port, and the rear end of the slurry discharge pipe is connected to the subsequent flotation system through a pipeline; The baffle assembly includes baffle A and baffle B, both of which are arranged in the overflow box; there are four baffles A, which are arranged around the four sides of the pulp inlet, and the width of the baffle located on the upper side of the pulp inlet is greater than the width of the lower baffle; baffle B is horizontally arranged on the left, right and rear inner walls of the overflow box, and baffle B is located between the upper baffle of baffle A and the upper side of the pulp inlet; a gap corresponding to the sampling port is left between baffle B and the upper baffle of baffle A.

2. The cyclone overflow sampling device according to claim 1, characterized in that: A lifting lug is also provided on the outside of the overflow box to facilitate adjustment of the installation position of the overflow box.

3. The cyclone overflow sampling device according to claim 1, characterized in that: A screen is arranged at the pulp discharge port in the overflow box.

4. The cyclone overflow sampling device according to claim 1, characterized in that: The movable cover is arranged on the sampling port of the overflow box through hinges, and a handle is arranged on the movable cover.

5. The cyclone overflow sampling device according to claim 1, characterized in that: The slurry discharge pipe is a pipe with an elbow.

6. The cyclone overflow sampling device according to claim 1, characterized in that: The baffle A and baffle B are both plates with holes.

7. The cyclone overflow sampling device according to claim 1, characterized in that: The width of the upper baffle plate of the pulp inlet is 1.5-2 times the width of the lower baffle plate.

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