Cyclone grinding sample pretreatment device

Abstract

The utility model discloses a cyclone mill sample pretreatment device which comprises a crushing bin, a feeding hole is formed in the top of the crushing bin, a screening structure is arranged at a discharging end at the bottom of the crushing bin, a crusher is arranged in the middle of the crushing bin, and the crusher is connected with a driving device; a conical funnel is arranged on the lower portion of the smashing bin, a feeding port of the conical funnel is connected with the smashing bin, and a discharging port of the conical funnel is connected with an inlet of the cyclone mill. The device is simple in structure, low in cost, high in operation convenience and capable of efficiently pretreating materials with high quality and continuously and stably feeding the pretreated materials into the cyclone mill, so that the feeding amount of the materials is controllable, the materials can be processed at a time after being subsequently fed into the cyclone mill, repeated crushing is not needed, the sample preparation time is greatly saved, and the production efficiency is improved. The sample preparation efficiency is high.

Description

Technical Field

[0001] The utility model relates to a cyclone grinding sample preparation pretreatment device, belonging to the technical field of grinding devices. Background Art

[0002] As a new type of chemical sample preparation equipment, the cyclone mill offers advantages such as fine and uniform particle size distribution, good chemical reproducibility, and high result stability. Currently, it is widely used in tobacco leaf sample preparation and other grinding operations. However, during the tobacco leaf pulverization process, due to its thin flaky structure, pulverization is difficult, resulting in the following problems:

[0003] (1) The existing cyclone mill feed is manually fed, and the feed amount is difficult to control, which makes the cyclone mill prone to blockage. Studies have shown that the average blocking time for each sample is more than 70 seconds, which greatly affects the sample preparation efficiency;

[0004] (2) Sample preparation generally requires secondary crushing, which takes too long and results in low sample preparation efficiency;

[0005] (3) During the sample production process, manual material feeding is required, which is time-consuming and labor-intensive. Utility Model Content

[0006] In view of this, the purpose of the present invention is to provide a cyclone mill sample preparation pretreatment device to at least solve the problems mentioned in the background technology.

[0007] The purpose of this utility model is achieved through the following technical solutions:

[0008] A cyclone mill sample preparation pretreatment device, comprising:

[0009] A crushing bin, wherein the top of the crushing bin is provided with a feed port and the bottom is a discharge port;

[0010] A screening structure, the screening structure being arranged at the discharge port at the bottom of the crushing bin;

[0011] A pulverizer, the pulverizer being arranged in the middle of the pulverizing bin;

[0012] A driving device, connected to the pulverizer, for driving the pulverizer to rotate and pulverize the sample;

[0013] The conical funnel is arranged at the lower part of the crushing bin, the feed port of the conical funnel is connected to the crushing bin, and the discharge port is connected to the inlet of the cyclone mill.

[0014] Furthermore, the crushing bin is a crushing cylinder made of stainless steel or acrylic, and the volume of the crushing cylinder is not less than 1L.

[0015] Furthermore, the screening structure is a plurality of small holes opened at the bottom of the crushing bin, or a mesh plate detachably connected to the bottom of the crushing bin.

[0016] Furthermore, the aperture of the small hole or mesh plate hole is not greater than 5 mm.

[0017] Furthermore, the crusher includes a rotating shaft arranged in the middle of the crushing bin, and a plurality of crushing blades are provided on the rotating shaft.

[0018] Furthermore, the driving device is a driving motor or a cyclone mill motor arranged on the top of the crushing bin.

[0019] Furthermore, the conical funnel includes a conical hopper connected to the crushing bin, and a slender conical mouth is provided at the lower end of the conical hopper.

[0020] Furthermore, the conical bucket and the conical nozzle are an integrally formed structure, and the material of the integrally formed structure is plastic or iron sheet.

[0021] Furthermore, the aperture of the cone nozzle outlet corresponds to the processing capacity of the cyclone mill.

[0022] Furthermore, the aperture of the cone nozzle outlet is not greater than 7 mm.

[0023] Compared with the prior art, the cyclone mill sample preparation and pretreatment device disclosed in the present invention can pre-crush the material by placing the material into the crushing bin in a fixed quantity at one time. During the crushing process, the material is automatically discharged through the screen and continuously fed into the cyclone mill at a constant speed through the conical funnel for processing. The beneficial effects are:

[0024] (1 The device has a simple structure, low cost, high convenience in operation, and can pre-process materials efficiently and with high quality, so that the materials can be processed in one go after being sent to the cyclone mill, without the need for repeated crushing, which greatly saves sample preparation time and has high sample preparation efficiency;

[0025] (2) It can continuously and stably feed the pretreated material into the cyclone mill, making the material feeding amount controllable, thereby avoiding clogging of the cyclone mill and improving sample preparation efficiency;

[0026] (3) During the working process, there is no need for manual labor to continuously feed materials into the cyclone mill, which can save manpower and time investment and has good promotion prospects and economic practicality.

[0027] Other advantages, objectives, and features of the present invention will be described in detail in the following description and, to some extent, will be apparent to those skilled in the art upon examination and study of the following or may be learned from practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings, in which:

[0029] Figure 1 This is a schematic structural diagram of the first embodiment of the present utility model;

[0030] Figure 2 This is a structural diagram of the second embodiment of the present utility model.

[0031] In the figure: 1. Crushing chamber; 2. Screening structure; 3. Crusher; 301. Rotating shaft; 302. Crushing blade; 4. Driving device; 401. Driving motor; 5. Conical funnel; 501. Conical bucket; 502. Conical nozzle; 6. Cyclone mill; 7. Transmission mechanism. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Example 1

[0034] like Figure 1 As shown, a cyclone grinding sample pretreatment device comprises:

[0035] Crushing bin 1, the top of the crushing bin 1 is provided with a feed port, and the bottom is a discharge port;

[0036] Screening structure 2, the screening structure 2 is arranged at the discharge port at the bottom of the crushing bin 1;

[0037] The crusher 3 is arranged in the middle of the crushing chamber 1;

[0038] The driving device 4 is connected to the pulverizer 3 and is used to drive the pulverizer 3 to rotate and pulverize the sample;

[0039] The conical funnel 5 is arranged at the lower part of the crushing bin 1 , the feed port of the conical funnel 5 is connected to the crushing bin 1 , and the discharge port is connected to the inlet of the cyclone mill 6 .

[0040] The crushing chamber 1 is a crushing cylinder made of stainless steel or acrylic, preferably stainless steel, with an observation window provided on the stainless steel cylinder for real-time monitoring of the sample crushing status. The crushing cylinder has a volume of no less than 1L and can hold more than 200kg of tobacco flakes at a time, providing a large processing capacity and high production efficiency.

[0041] The crusher 3 includes a rotating shaft 301 arranged in the middle of the crushing chamber 1 , and a plurality of crushing blades 302 are provided on the rotating shaft 301 .

[0042] The screening structure 2 is a plurality of small holes opened at the bottom of the crushing bin, or a mesh plate detachably connected to the bottom of the crushing bin 1. The aperture of the small holes or mesh plate holes is not greater than 5 mm.

[0043] In this embodiment, the driving device 4 is a driving motor, which is arranged on the top of the crushing bin 1 and connected to the rotating shaft 301 of the crusher 3. The power of the driving motor is not less than 500W.

[0044] The conical funnel 5 includes a conical hopper 501 connected to the crushing chamber, with a slender conical nozzle 502 at the lower end. The conical hopper 501 and the conical nozzle 502 are integrally formed, and the material of the integrally formed structure can be plastic or iron. The aperture of the conical nozzle 502 outlet corresponds to the processing capacity of the cyclone mill 6, so that the discharge speed matches the processing speed of the cyclone mill 6, thereby preventing the cyclone mill 6 from clogging. Specifically, the aperture of the conical nozzle 502 outlet is no larger than 7 mm, ensuring normal material feeding while ensuring that the cyclone mill 6 is not easily blocked.

[0045] Example 2

[0046] like Figure 2 As shown, based on Example 1, in this embodiment, the driving device 4 can also be a cyclone mill motor 601. The cyclone mill motor 601 is connected to the rotating shaft 301 of the pulverizer 3 via a transmission mechanism 7. During the operation of the cyclone mill 6, the transmission mechanism 7 synchronously drives the pulverizer 3 to operate to pulverize the sample. The pulverized sample falls into the cyclone mill, thereby achieving continuous and rapid sample preparation. The transmission mechanism 7 can be a connecting rod structure or a belt drive mechanism.

[0047] The above description is only a preferred embodiment of the present invention and does not constitute any form of confidentiality restriction on the present invention. Any simple modification, equivalent change and modification of the above embodiment made based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A cyclone grinding sample pretreatment device, characterized in that: include; A crushing bin (1), wherein the crushing bin (1) has a feed port at the top and a discharge port at the bottom; A screening structure (2), the screening structure (2) being arranged at a discharge port at the bottom of the crushing bin (1); A pulverizer (3), the pulverizer (3) being arranged in the middle of the pulverizing bin (1); A driving device (4), the driving device (4) is connected to the pulverizer (3) and is used to drive the pulverizer (3) to rotate and pulverize the sample; A conical funnel (5) is provided at the lower part of the crushing bin (1), a feed port of the conical funnel (5) is connected to the crushing bin (1), and a discharge port of the conical funnel (5) is connected to the inlet of the cyclone mill (6).

2. The cyclone mill sample preparation pretreatment device according to claim 1, characterized in that: The crushing bin (1) is a crushing cylinder made of stainless steel or acrylic material, and the volume of the crushing cylinder is not less than 1L.

3. The cyclone mill sample preparation pretreatment device according to claim 1, characterized in that: The screening structure (2) is a plurality of small holes opened at the bottom of the crushing bin, or a grid plate detachably connected to the bottom of the crushing bin (1).

4. The cyclone mill sample preparation pretreatment device according to claim 3, characterized in that: The aperture of the small holes or mesh plate holes is no greater than 5 mm.

5. The cyclone mill sample preparation pretreatment device according to claim 1, characterized in that: The pulverizer (3) comprises a rotating shaft (301) arranged in the middle of the pulverizing bin (1), and a plurality of pulverizing blades (302) are provided on the rotating shaft (301).

6. The cyclone mill sample preparation pretreatment device according to claim 5, characterized in that: The driving device (4) is a driving motor or a cyclone mill motor (601) arranged on the top of the crushing bin (1).

7. The cyclone mill sample preparation pretreatment device according to claim 1, characterized in that: The conical funnel (5) comprises a conical hopper (501) connected to the crushing bin, and a slender conical mouth (502) is provided at the lower end of the conical hopper (501).

8. The cyclone mill sample preparation pretreatment device according to claim 7, characterized in that: The conical bucket (501) and the conical nozzle (502) are an integrally formed structure, and the material of the integrally formed structure is plastic or iron sheet.

9. The cyclone mill sample preparation pretreatment device according to claim 8, characterized in that: The aperture of the cone nozzle (502) outlet corresponds to the processing capacity of the cyclone mill (6).

10. The cyclone mill sample preparation pretreatment device according to claim 9, characterized in that: The aperture of the cone nozzle (502) outlet is no larger than 7 mm.

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