Hammer crusher capable of screening
By designing a sieveable hammer mill, the problem of insufficient adaptability of the mill to different raw materials was solved, achieving flexible sieve separation and preventing clogging, thus improving work efficiency and pulverization uniformity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-04-03
AI Technical Summary
Existing crushers are not adaptable to different raw materials, resulting in low working efficiency and easy clogging of the screen, which affects the normal operation of the equipment.
A sieving hammer mill was designed, which includes a screen and screen plate structure. It can replace screens with different aperture sizes and prevent screen clogging through a cleaning rack, thereby improving the flexibility and efficiency of the equipment.
It enables flexible screening of different raw materials, prevents screen clogging, improves equipment efficiency and adaptability, and ensures uniform crushing of raw materials.
Smart Images

Figure CN224072110U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pulverizing and testing technology of raw materials for liquor, specifically a hammer mill that can be sieved. Background Technology
[0002] The raw materials for baijiu (Chinese white liquor) include sorghum, corn, wheat, and rice. First, suitable raw materials are selected for brewing. Then, a starter culture (qu) is made. This starter culture contains microorganisms and enzymes that help convert the starch in the grains into sugars, which in turn produce alcohol during fermentation. The prepared raw materials are mixed with the starter culture and fermented under specific temperature and humidity conditions. The fermented mixture is then distilled to separate the alcohol and other substances. The distilled liquor is stored in containers for aging. During production, the raw materials need to be ground and tested. This testing helps identify problems in the raw material processing, such as uneven particle size or clumping, thereby optimizing the production process and improving efficiency and product quality.
[0003] Therefore, a testing device is needed to crush and sieve the raw materials for baijiu (Chinese liquor) to ensure that the raw materials are crushed into smaller and more uniform particles, facilitating subsequent saccharification and fermentation processes, and ensuring the accuracy of the raw material testing data. Different raw materials require different degrees of crushing, and existing crushers lack flexibility in handling different raw material characteristics. Replacing filters with different pore sizes is cumbersome and affects work efficiency. Furthermore, filter clogging due to uncontrollable factors during the raw material crushing process also impacts equipment efficiency. Utility Model Content
[0004] The purpose of this invention is to provide a sieveable hammer mill to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a sieveable hammer mill, comprising a support frame and a platform fixedly installed in the middle section of the support frame. A motor frame is fixedly installed on the upper left side of the platform, and a motor is fixedly installed on the upper part of the motor frame. The output shaft of the motor faces to the right, and a rotor shaft is fixedly installed at the right end of the output shaft. Cleaning frames are fixedly installed on both sides of the rotor shaft. A screen is provided on the outer side of the cleaning frames. The screen is arc-shaped, and the left end of the screen is keyed into a slot in the left wall of the crushing chamber. An opening corresponding to the screen is provided on the right wall of the crushing chamber. The crushing chamber is fixedly installed on the upper right side of the platform, and a screen plate is fixedly installed at the opening of the crushing chamber. The size of the screen plate is sufficient to cover the gap between the crushing chamber and the screen.
[0006] Preferably, an operator is fixedly installed at the front end of the equipment platform.
[0007] Preferably, a feed inlet is fixedly installed at the upper opening of the crushing chamber, and a discharge inlet is fixedly installed at the lower opening of the crushing chamber, with the discharge inlet penetrating the equipment platform.
[0008] Preferably, a plurality of rotor discs are fixedly mounted on the rotor shaft, and a support rod is fixedly mounted between the plurality of rotor discs. The support rod passes through all the rotor discs, and a plurality of hammers are fixedly mounted on the support rod. The plurality of hammers are installed in the gaps between the plurality of rotor discs.
[0009] Preferably, the screen passes through an opening in the right side wall of the crushing chamber, and a protrusion is provided at the right end of the screen.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] 1. This sieving hammer mill, through the screens and screen plates set inside the crushing chamber, has a larger contact surface with the raw materials for liquor, which improves the working efficiency of the equipment. The replaceable screens can use screens with different apertures to sieve the raw materials to different degrees, which improves the flexibility of the equipment and is also easy to maintain and adapt to different raw material characteristics.
[0012] 2. This sieveable hammer mill prevents the screen mesh from becoming clogged due to uncontrollable factors when crushing raw materials for liquor by rotating the cleaning frame set on the rotor shaft, thus preventing a decrease in work efficiency due to equipment malfunction. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a front sectional view of the present invention;
[0015] Figure 3 This is a right-side sectional view of the present invention.
[0016] In the diagram: 1. Support frame; 101. Equipment platform; 102. Operator; 2. Feed port; 201. Crushing chamber; 202. Feed inlet; 203. Screen plate; 204. Screen mesh; 205. Slot; 3. Hammer; 301. Support rod; 302. Rotor disc; 4. Cleaning frame; 5. Motor; 501. Motor frame; 502. Output shaft; 503. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figures 1 to 3 This utility model provides a technical solution:
[0019] A sieving hammer mill includes a support frame 1 and a machine platform 101 fixedly mounted to the middle section of the support frame 1 with screws. A motor frame 501 is fixedly mounted to the upper left side of the machine platform 101 with screws, and a motor 5 is fixedly mounted to the upper part of the motor frame 501 with screws. Figure 1 As shown, motor 5 provides power to the equipment. The output shaft 502 of motor 5 faces to the right, and the rotor shaft 503 is fixedly mounted on the right end of the output shaft 502 via a keyway. Figure 2 As shown, a cleaning frame 4 is fixedly installed on both sides of the rotor shaft 503 via keyways. A screen 204 is provided on the outer side of the cleaning frame 4. The screen 204 is arc-shaped. The cleaning frame 4 and the rotor shaft 503 cooperate. When the motor 5 starts, the output shaft 502 drives the rotor shaft 503 and the cleaning frame 4 fixedly installed on the rotor 503 via keyways to rotate. The cleaning frame 4 can scrape off the liquor raw materials attached to and blocked on the screen 204, preventing the screen 4 from being blocked and affecting the crushing efficiency of raw material agglomeration. The left end of the screen 204 is connected to the slot 205 in the left side wall of the crushing chamber 201 via a keyway. The right side wall of the crushing chamber 201 has an opening corresponding to the screen 204. The slot 205 in the crushing chamber 201 and the opening in the right side wall are connected to the screen 204 via keyways. The design allows for the removal and replacement of the screen 204, facilitating the use of different mesh sizes for screening raw materials at different levels. The raw materials screened by the screen 204 pass through the gap between the crushing chamber 201 and the screen 204 before being discharged through the discharge port 2. The crushing chamber 201 is fixedly installed on the upper right side of the equipment platform 101 with screws. A screen plate 203 is fixedly installed at the opening of the crushing chamber 201 with screws. The size of the screen plate 203 is sufficient to cover the gap between the crushing chamber 201 and the screen 204. The screen plate 204 performs preliminary screening of the liquor raw materials at the feed port 202. Raw materials that do not require crushing pass directly through the gap between the screen 204 and the crushing chamber 201 before being discharged through the discharge port 2.
[0020] Furthermore, an operator 102 is fixedly installed at the front end of the equipment platform 101 with screws, which facilitates issuing operating instructions to the equipment and makes the operation simple and easy to learn.
[0021] Furthermore, a feed inlet 202 is fixedly installed at the upper opening of the crushing chamber 201 by screws, and a discharge port 2 is fixedly installed at the lower opening of the crushing chamber 201 by screws. The discharge port 2 passes through the equipment platform 101, so that the raw materials for liquor can be poured into the crushing chamber 201 from the feed inlet 202, and the crushed raw materials are discharged through the discharge port 2.
[0022] Furthermore, a number of rotor discs 302 are fixedly installed on the rotor shaft 503 via keyways, and a support rod 301 is fixedly installed between the rotor discs 302. The support rod 301 passes through all the rotor discs 302, and a number of hammers 3 are fixedly installed on the support rod 301 via keyways. The hammers 3 are installed in the gaps between the rotor discs 302. With the cooperation of the above components, the rotor shaft 503 drives the rotor discs 302 and the hammers 3 to rotate, thereby breaking up the agglomerated liquor raw materials.
[0023] Furthermore, the screen 204 penetrates the opening on the right side wall of the crushing chamber 201, and a protrusion is provided on the right end of the screen 204 to facilitate the removal and replacement of the screen 204 and to provide a point of force for pulling.
[0024] In practical use, the motor 5 is started by the operator 102, and the agglomerated liquor raw materials are poured into the crushing chamber 201 from the feed inlet 202. The raw materials that do not require crushing when passing through the opening at the top of the crushing chamber 201 are initially screened by the screen plate 203 and then directly pass through the gap between the screen 204 and the crushing chamber 201 before being discharged from the discharge outlet 2. When the motor 5 is working, the output shaft 502 drives the rotor shaft 503, which in turn drives the rotor disc 302 and the hammer 3 to rotate, thus crushing the agglomerated liquor raw materials. When the shaft 503 and the cleaning rack 4, which is fixedly mounted on the rotor 503 via a keyway, rotate, the cleaning rack 4 can scrape off the liquor raw materials that are attached to and blocked on the screen 204, preventing the screen 4 from becoming clogged and affecting the crushing efficiency of the raw materials. The liquor raw materials that meet the crushing requirements are screened through the screen 204, pass through the gap between the crushing chamber 201 and the screen 204, and are discharged from the discharge port 2. If raw materials of different particle sizes are required, the screen 204 can be pulled out through the protrusion on the right side of the screen 204 and a screen 204 with a different mesh size can be inserted.
[0025] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A hammer mill that can be sieved, comprising a support (1) and a device table (101) fixedly installed in the middle section of the support (1), a motor rack (501) is fixedly installed above the left side of the device table (101), an electric motor (5) is fixedly installed above the motor rack (501), the output shaft (502) of the electric motor (5) faces the right side, a rotor shaft (503) is fixedly installed at the right end of the output shaft (502), characterized in that: The rotor shaft (503) is fixedly installed with a cleaning material frame (4) on both sides, an outer side of the cleaning material frame (4) is provided with a screen mesh (204), the screen mesh (204) is in a circular arc shape, a left end key groove of the screen mesh (204) is connected into a clamping groove (205) in a left side bin wall of a crushing bin (201), a right side bin wall of the crushing bin (201) is provided with an opening corresponding to the screen mesh (204), the crushing bin (201) is fixedly installed above a right side of a device table (101), an opening of the crushing bin (201) is fixedly installed with a screen plate (203), the screen plate (203) is large enough to cover a gap between the crushing bin (201) and the screen mesh (204).
2. A hammer mill with a detachable screen according to claim 1, characterized in that: A front end of the device table (101) is fixedly installed with an operator (102).
3. A hammer mill with a detachable screen according to claim 1, characterized in that: An upper end opening of the crushing bin (201) is fixedly installed with an inlet (202), a lower end opening of the crushing bin (201) is fixedly installed with a discharge port (2), the discharge port (2) penetrates the device table (101).
4. A screenable hammer mill according to claim 1, characterized in that: The rotor shaft (503) is fixedly installed with a plurality of rotor discs (302), a plurality of support rods (301) are fixedly installed between the plurality of rotor discs (302), the support rods (301) penetrate all the rotor discs (302), a plurality of hammer heads (3) are fixedly installed on the support rods (301), and the plurality of hammer heads (3) are installed in gaps between the plurality of rotor discs (302).
5. A hammer mill according to claim 1, wherein: The screen mesh (204) penetrates the opening provided in the right side bin wall of the crushing bin (201), and a right end of the screen mesh (204) is provided with a protruding block.