Crusher for heavy metal detection

Abstract

The utility model discloses a crusher for heavy metal detection, which comprises a coarse crusher for primarily crushing a sample and a fine crusher for crushing the primarily crushed sample, and the crushing degree of the fine crusher is greater than that of the coarse crusher. A discharge port of the coarse crusher is communicated with a feed port of the fine crusher through a communication pipeline, the communication pipeline is in smooth transition from the feed port to the discharge port, the coarse crusher is arranged above the fine crusher, and the coarse crusher or the communication pipeline is provided with supporting legs. The crusher for heavy metal detection is reasonable in design, manual sample shearing is avoided, and the sample crushing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a crusher for heavy metal detection. Background Art

[0002] What are heavy metals? Heavy metals refer to metals with a density greater than 4.5 g / cm3, including gold, silver, copper, iron, mercury, lead, cadmium, etc. In terms of environmental pollution, heavy metals mainly refer to heavy elements such as mercury (mercury), cadmium, lead, chromium, and metalloid arsenic with significant biological toxicity. Heavy metals are very difficult to be biodegraded. Heavy metals can strongly interact with proteins and enzymes in the human body, making them lose their activity, and may also accumulate in certain organs of the human body, causing chronic poisoning.

[0003] Therefore, the detection of heavy metals is very important. In the determination methods such as GB / T 33422-2016 Determination of heavy metal content in thermoplastic elastomers, GB / T 33324-2016 Determination of heavy metal content in latex products, and GB / T 32433-2015 Chemical test methods for footwear - Determination of heavy metal content, it is required to control the size of the sample below 5 mm * 5 mm, and even below 2 mm. Manually cutting and crushing is time-consuming and laborious.

[0004] Therefore, it is necessary to design a crusher for heavy metal detection. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the defects existing in the prior art, and provide a crusher for heavy metal detection, which can avoid manually cutting and crushing samples and improve the crushing efficiency of samples.

[0006] To achieve the above technical effects, the technical solution of the utility model is: a crusher for heavy metal detection, including a coarse crusher for initially crushing the sample and a fine crusher for crushing the initially crushed sample. The crushing degree of the fine crusher is greater than that of the coarse crusher. The discharge port of the coarse crusher is communicated with the feed port of the fine crusher through a connecting pipe, and the feed port to the discharge port of the connecting pipe is set to have a smooth transition. The coarse crusher is arranged above the fine crusher, and the coarse crusher or the connecting pipe is provided with support feet.

[0007] The preferred technical solution is that the coarse crusher includes extrusion rollers, and a plurality of extrusion cutter heads are fixedly arranged on the outer periphery of the extrusion rollers. The extrusion cutter heads of the two extrusion rollers cooperate to extrude and crush the sample.

[0008] Preferably, the coarse crusher is provided with a feed chute. The inlet of the feed chute is adjacent to the inlet of the coarse crusher, and the outlet of the feed chute is adjacent to the extrusion cutter head. The inlet section of the feed chute is in a trumpet shape, and the outlet of the feed chute is set to be rectangular and adapted to the extrusion roller. The extrusion cutter head is arranged below the outlet of the feed chute.

[0009] Preferably, the fine crusher includes a filter screen and a plurality of crushing cutter heads. The filter screen is arranged below the crushing cutter heads and adjacent to the rotation path of the crushing cutter heads, and the filter screen is arranged at the outlet of the fine crusher.

[0010] Preferably, a support plate for supporting the filter screen is fixedly arranged at the outlet of the fine crusher, and the support plate is fixedly connected to the filter screen.

[0011] Preferably, the support plate is arranged in a dislocation manner with the screen holes of the filter screen.

[0012] Preferably, the fine crusher is fixedly provided with a raised support leg, and a receiving box is arranged below the outlet of the fine crusher.

[0013] Preferably, the size of the opening of the receiving box is not less than the size of the outlet of the fine crusher.

[0014] The advantages and beneficial effects of the present utility model are as follows: The crusher for heavy metal detection of the present utility model has a reasonable structure. By setting a coarse crusher and a fine crusher, the coarse crusher is used for initially crushing the sample, and the fine crusher is used for crushing the initially crushed sample to meet the detection standard. The setting of the coarse crusher prolongs the service life of the cutter head of the fine crusher; compared with the prior art, it avoids manually cutting the sample, improves the sample crushing efficiency, and improves the accuracy of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of an embodiment of the crusher for heavy metal detection of the present utility model;

[0016] Figure 2 is Figure 1 an exploded view of

[0017] Figure 3 is a schematic internal structure diagram of the coarse crusher;

[0018] Figure 4 is a schematic internal structure diagram of the fine crusher;

[0019] In the figure: 1. Coarse crusher; 11. Extrusion roller; 12. Extrusion cutter head; 13. Feeding chute; 2. Fine crusher; 21. Filter screen; 22. Crushing cutter head; 23. Support plate; 24. Lifting leg; 3. Connecting pipe; 31. Support foot; 4. Material receiving box. Detailed implementation mode

[0020] The following combines the drawings and embodiments to further describe the detailed implementation mode of the present invention. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention 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 cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] Embodiment

[0023] As Figures 1-4 shown, the heavy metal detection crusher of the embodiment includes a coarse crusher 1 for initially crushing the sample and a fine crusher 2 for crushing the initially crushed sample. The crushing degree of the fine crusher 2 is greater than that of the coarse crusher 1. The discharge port of the coarse crusher 1 and the feed port of the fine crusher 2 are communicated through a connecting pipe 3. The feed port to the discharge port of the connecting pipe 3 is set with a smooth transition. The coarse crusher 1 is arranged above the fine crusher 2, and the coarse crusher 1 or the connecting pipe 3 is provided with a support foot 31.

[0024] Through such a design, the sample is successively crushed by the coarse crusher 1 and the fine crusher 2, so as to meet the detection standard, avoiding manual cutting of the sample, avoiding time-consuming and laborious work, and improving the sample crushing efficiency; the operator puts the sample into the feed port of the coarse crusher 1, and after the initial crushing, it enters the fine crusher 2 under the action of gravity through the connecting pipe 3 for further crushing operation; the support foot 31 can support the coarse crusher 1 and avoid the phenomenon of unstable center of gravity of the whole crusher device.

[0025] Specifically, the coarse crusher 1 includes an extrusion roller 11, and a plurality of extrusion cutter heads 12 are fixedly arranged on the outer periphery of the extrusion roller 11. The extrusion cutter heads 12 of the two extrusion rollers 11 cooperate to extrude and crush the sample.

[0026] Through such a design, the purpose of initially extruding and crushing the sample is achieved.

[0027] Further, the coarse crusher 1 is provided with a feed chute 13. The inlet of the feed chute 13 is adjacent to the inlet of the coarse crusher 1, and the outlet of the feed chute 13 is adjacent to the extrusion cutter head 12. The inlet section of the feed chute 13 is arranged in a horn shape, and the outlet of the feed chute 13 is set to be rectangular and adapted to the extrusion roller 11. The extrusion cutter head 12 is arranged below the outlet of the feed chute 13.

[0028] Through such a design, the convenience of putting the sample is improved, and at the same time, a certain guiding effect is also played on the extrusion and crushing of the sample.

[0029] Specifically, the fine crusher 2 includes a filter screen 21 and a plurality of crushing cutter heads 22. The filter screen 21 is arranged below the crushing cutter heads 22 and adjacent to the rotation path of the crushing cutter heads 22. The filter screen 21 is arranged at the outlet of the fine crusher 2.

[0030] Through such a design, the filter screen can hold the sample to be crushed, and only the sample that has been crushed to meet the standard by the crushing cutter heads 22 can pass through the sieve holes of the filter screen 21 and discharge. The diameter of the sieve holes of the filter screen 21 is not greater than 5 mm.

[0031] Specifically, a support plate 23 for supporting the filter screen 21 is fixedly arranged at the outlet of the fine crusher 2, and the support plate 23 is fixedly connected to the filter screen 21.

[0032] Through such a design, it is avoided that the filter screen 21 deforms due to the excessive weight of the sample, resulting in the crushing cutter heads 22 being unable to crush the sample well.

[0033] Specifically, the support plate 23 is arranged in a dislocation manner with the sieve holes of the filter screen 21.

[0034] Through such a design, it is avoided that the support plate 23 blocks the sieve holes, resulting in the sample being unable to fall.

[0035] Further, the fine crusher 2 is fixedly provided with a lifting leg 24, and a receiving box 4 is arranged below the outlet of the fine crusher 2.

[0036] Through such a design, it is convenient to receive the crushed sample.

[0037] Specifically, the size of the opening of the receiving box 4 is not less than the size of the outlet of the fine crusher 2.

[0038] Such a design is a further limitation to the above scheme.

[0039] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A crusher for heavy metal detection, characterized in that, It includes a coarse crusher (1) for initially crushing the sample and a fine crusher (2) for pulverizing the initially crushed sample. The pulverization degree of the fine crusher (2) is greater than that of the coarse crusher (1). The discharge port of the coarse crusher (1) and the feed port of the fine crusher (2) are communicated through a connecting pipe (3). The feed port to the discharge port of the connecting pipe (3) is set with a smooth transition. The coarse crusher (1) is arranged above the fine crusher (2), and the coarse crusher (1) or the connecting pipe (3) is provided with support feet (31); The fine crusher (2) includes a filter screen (21) and a number of pulverizing cutter heads (22). The filter screen (21) is arranged below the pulverizing cutter heads (22) and adjacent to the rotation path of the pulverizing cutter heads (22). The filter screen (21) is arranged at the discharge port of the fine crusher (2); A support plate (23) for supporting the filter screen (21) is fixedly arranged at the discharge port of the fine crusher (2). The support plate (23) is fixedly connected to the filter screen (21); The support plate (23) and the screen holes of the filter screen (21) are arranged in a dislocation manner.

2. The crusher for heavy metal detection according to claim 1, wherein The coarse crusher (1) includes extrusion rollers (11). A number of extrusion cutter heads (12) are fixedly arranged on the outer periphery of the extrusion rollers (11). The extrusion cutter heads (12) of the two extrusion rollers (11) cooperate to extrude and crush the sample.

3. The crusher for heavy metal detection according to claim 2, characterized in that, The coarse crusher (1) is provided with a material guiding groove (13). The feed port of the material guiding groove (13) is adjacent to the feed port of the coarse crusher (1). The discharge port of the material guiding groove (13) is adjacent to the extrusion cutter heads (12). The feed section of the material guiding groove (13) is arranged in a horn shape. The discharge port of the material guiding groove (13) is set to be rectangular and adapted to the extrusion rollers (11). The extrusion cutter heads (12) are arranged below the discharge port of the material guiding groove (13).

4. The crusher for heavy metal detection according to claim 1, wherein, The fine crusher (2) is fixedly provided with elevation legs (24). A receiving box (4) is arranged below the discharge port of the fine crusher (2).

5. The crusher for heavy metal detection according to claim 4, characterized in that, The size of the box opening of the receiving box (4) is not less than the size of the discharge port of the fine crusher (2).

Images