A cooling machine

Abstract

This utility model discloses a cooling machine, including an upper housing, a reducer mounted on the upper part of the upper housing, a lower housing mounted on the bottom of the upper housing, a support frame fixedly mounted on the bottom of the lower housing, a drive cylinder mounted on the side wall of the support frame, a main shaft mounted inside the upper housing, a drive frame fixedly mounted on the bottom of the main shaft, a scraper mounted on the bottom of the drive frame, and a sieve plate mounted inside the lower housing, with a discharge gate plate mounted on the sieve plate. This cooling machine eliminates the need for pre-reserved linear channels, fundamentally solving the problem of redundant floor space caused by long conveyor equipment and linear layouts. It significantly reduces the floor space required for the same processing capacity, making it particularly suitable for processing scenarios with limited space and requiring efficient space utilization. It can be easily adapted to small and medium-sized wheat processing plants or converted workshops with limited factory space, reducing infrastructure costs.

Description

Technical Field

[0001] This utility model relates to the field of cooling machines, specifically a cooling machine. Background Technology

[0002] In the process of producing specialty malts, the cooling machine is the core equipment in the cooling stage. Its function is to terminate the germination metabolic activity of the malt grains by rapidly and evenly cooling them, while simultaneously regulating the moisture content of the grains, laying the foundation for subsequent drying / roasting processes. Specialty malts (such as caramel malt, chocolate malt, and crystal malt) require even higher cooling precision due to their unique flavor, color, and aroma. This necessitates precise cooling through scientific control of the cooling machine's operating parameters and processes. The following details the specific cooling principle, operating procedures, and key control points: Specialty malt processing commonly uses continuous ventilated turning machines, whose core structure includes: a feeding and spreading system (such as a rotary spreader or scraper spreader): evenly spreading the germinated malt grains on the cooling bed surface, controlling the thickness (usually 8-15cm, but may be thinner for specialty malt due to grain size); and a ventilation system (including fans, ducts, and valves): forcibly introducing cold air (or ambient temperature air, depending on environmental control) to remove heat from the malt grains through air convection, while simultaneously regulating humidity (to prevent condensation on the grain surface).

[0003] In the roasting oven, the roasting temperature of wheat varies depending on the color requirements of different products, but it is generally above 90℃. Since the capacity of the roasting oven is generally around 500kg-1t, the freshly roasted malt needs to be packaged in time to speed up the feeding process. However, the high temperature of the wheat before packaging is not conducive to packaging. Therefore, it needs to be cooled quickly after roasting, which is where the grain spreader plays a significant role. Existing grain spreaders are usually long conveyor-type grain spreaders, which occupy a large area. Taking the soy sauce-flavored liquor mash spreading and cooling device with announcement number CN205576074U as an example, it has stringent requirements for factory space and is difficult for small and medium-sized malt mills or modified workshops to adapt, increasing infrastructure costs. Utility Model Content

[0004] The purpose of this invention is to provide a cooling machine to solve the defects mentioned in the background art.

[0005] To achieve the above objectives, a cooling machine is provided, comprising an upper housing, a reducer mounted on the upper part of the upper housing, a lower housing mounted on the bottom of the upper housing, a support frame fixedly mounted on the bottom of the lower housing, a drive cylinder mounted on the side wall of the support frame, a main shaft mounted inside the upper housing, a drive frame fixedly mounted on the bottom of the main shaft, a scraper mounted on the bottom of the drive frame, a sieve plate mounted inside the lower housing, and a discharge gate plate mounted on the sieve plate.

[0006] Furthermore, the output shaft of the reducer is fixedly connected to the main shaft via a coupling, and a bearing housing is sleeved on the outer side of the main shaft, with the bearing housing fixedly connected to the center position of the upper part of the upper housing.

[0007] Furthermore, the reducer drives the drive frame to rotate via the main shaft, and multiple sets of scrapers are evenly installed at the bottom of the drive frame. The scrapers are rectangular and are positioned directly above the sieve plate.

[0008] Furthermore, the screen plate is circular, the screen plate and the lower box are in a concentric circle structure, the lower box and the upper box are in a concentric circle structure, and a hopper is fixedly installed at the bottom of the lower box, the hopper being conical.

[0009] Furthermore, the hopper is provided with inspection doors at equal intervals on its outer circumference. The inspection doors are rectangular, and a support rod A is installed on the outside of the hopper. A support rod B is provided on the top of the support rod A.

[0010] Furthermore, two sets of exhaust vents are installed on the outer circumference of the lower housing, and both sets of exhaust vents are connected to the interior of the lower housing, with an included angle of 90 degrees between the two sets of exhaust vents.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This application utilizes a cooling machine that is cylindrical in shape with a continuous arc-shaped inner wall, free of right angles, sharp edges, or protrusions. When the drive frame moves the scraper in a circular motion, the wheat material, guided by the arc-shaped inner wall, will spread or tumble evenly in a circular motion with the scraper, avoiding material accumulation caused by right angles or corners. This ensures that all the wheat material is fully agitated by the scraper, reducing uneven heat dissipation caused by local accumulation. This, combined with the stirring action of the scraper, further improves the consistency of heat and heat dissipation of the wheat material.

[0013] 2. This application's cylindrical cooling machine offers greater site compatibility through its circular layout: it can be directly installed in square, polygonal, or cornered areas, as long as the central area remains unobstructed; it eliminates the need for pre-reserved linear channels, fundamentally solving the problem of redundant floor space caused by long conveyor equipment and linear layouts; it significantly reduces the floor space required for the same processing capacity, making it particularly suitable for processing scenarios with limited space and the need for efficient space utilization; it can be easily adapted to small and medium-sized wheat processing plants or converted workshops with limited factory space, reducing infrastructure costs. Attached Figure Description

[0014] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 Top view;

[0016] Figure 3 for Figure 2 A partial cross-sectional view of the AA structure in the image;

[0017] Figure 4 for Figure 2 A partial cross-sectional view of the BB structure.

[0018] The following are the labels in the diagram: 1. Reducer; 100. Main shaft; 200. Bearing housing; 2. Upper housing; 3. Drive frame; 31. Scraper; 4. Lower housing; 5. Screen plate; 51. Discharge gate plate; 6. Exhaust vent; 7. Hopper; 71. Inspection door; 8. Support frame; 9. Drive cylinder; 10. Support rod A; 101. Support rod B. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a cooling machine, including an upper box 2, a reducer 1 installed on the upper part of the upper box 2, a lower box 4 installed at the bottom of the upper box 2, a support frame 8 fixedly installed at the bottom of the lower box 4, a drive cylinder 9 installed on the side wall of the support frame 8, a main shaft 100 installed inside the upper box 2, a drive frame 3 fixedly installed at the bottom of the main shaft 100, a scraper 31 installed at the bottom of the drive frame 3, a sieve plate 5 installed inside the lower box 4, and a discharge gate plate 51 provided on the sieve plate 5.

[0021] Working principle: In actual use, the external switch of the reducer 1 is turned on. The output shaft of the reducer 1 drives the main shaft 100 to rotate. The main shaft 100 drives the drive frame 3 to rotate slowly. Multiple sets of scrapers 31 are evenly installed at the bottom of the drive frame 3. When the scrapers 31 make circular motion, they can agitate the large amount of wheat material spread on the sieve plate 5. Exhaust fans are installed on the outside of the two sets of exhaust ports 6 to exhaust the hot air inside the drive frame 3 and the lower box 4. Combined with the agitation work of the large number of scrapers 31, To improve the heat dissipation of wheat material, this cooling machine is cylindrical in shape with a continuous arc-shaped inner wall, free of right angles, sharp edges, or protrusions. When the drive frame 3 drives the scraper 31 in a circular motion, the wheat material, guided by the arc-shaped inner wall, will spread or tumble evenly in a circular motion with the scraper 31, avoiding material accumulation caused by right angles or corners. This ensures that all wheat material is fully agitated by the scraper 31, reducing uneven heat dissipation caused by local accumulation. This, combined with the agitation effect of the scraper 31, further improves the consistency of heat and heat dissipation of the wheat material.

[0022] Long conveyor-type cooling machines have strict requirements on site shape, requiring continuous straight space. If the site has corners, pillars, or other obstacles, it may need to be "detoured" or "cut off," resulting in some space being unusable. Cylindrical cooling machines, on the other hand, have greater site compatibility due to their circular layout: they can be directly installed in square, polygonal, or cornered sites, as long as the central area is unobstructed; no linear passage is required, and the surrounding space can be flexibly planned, such as arranging other auxiliary equipment around the cylinder, reducing space waste caused by site shape limitations; the cylindrical cooling machine's feeding and discharging... With materials concentrated on one side or evenly distributed around the circumference, such as top feeding and bottom discharging, the operating space only needs to be around the perimeter of the cylinder, eliminating the need for additional "front and rear extension space" and thus reducing the footprint. The cylindrical cooling machine, through its "round instead of long" shape optimization, fundamentally solves the problem of long conveyor equipment and the redundancy of space caused by linear layout. It can significantly reduce the floor space required for the same processing capacity, making it particularly suitable for processing scenarios with limited space and the need for efficient space utilization. It can be easily adapted to small and medium-sized wheat mills or converted workshops with limited factory space, reducing infrastructure costs.

[0023] In a preferred embodiment, the output shaft of the reducer 1 is fixedly connected to the main shaft 100 via a coupling. A bearing housing 200 is sleeved on the outer side of the main shaft 100, and the bearing housing 200 is fixedly connected to the upper center position of the upper housing 2.

[0024] The reducer 1 drives the drive frame 3 to rotate via the main shaft 100. Multiple sets of scrapers 31 are evenly installed at the bottom of the drive frame 3. The scrapers 31 are rectangular and are positioned directly above the screen plate 5.

[0025] like Figure 1 and Figure 2As shown: The cylindrical internal space is regular, resulting in less airflow resistance; when hot air is discharged from the two sets of exhaust vents 6, the hot airflow can flow smoothly along the arc-shaped inner wall, reducing airflow vortices or dead corners caused by right angles and protrusions, and avoiding local hot air stagnation; at the same time, the cylindrical structure makes the hot air distribution inside the drive frame 3, upper box 2, and lower box 4 more uniform, and with the material agitation generated by the scraper 31, the heat dissipation effect of the exhaust fan can more efficiently cover all the wheat area, further enhancing the heat dissipation effect; the cylindrical structure can evenly distribute the weight of the equipment itself, the gravity of the internal wheat, and the centrifugal force generated by the rotation of the drive frame 3 throughout the entire area. The cylindrical wall avoids the problem of stress concentration at the corners in a square structure; the uniform stress distribution reduces local wear on equipment components and extends service life, making it especially suitable for working conditions where the drive frame 3 rotates for a long time and the scraper 31 is in continuous contact with the material; with the same floor space, the cylindrical shape has a larger internal volume, which can hold more wheat material and increase the single cooling capacity; the outer surface has no sharp corners or protruding structures, which reduces the risk of collisions with sharp corners when operators work around the equipment, improving operational safety; the symmetrical design of the cylindrical shape also facilitates the symmetrical installation of components such as the reducer, main shaft, and exhaust vent 6, simplifying the overall structural layout and reducing assembly difficulty.

[0026] In a preferred embodiment, the screen plate 5 is circular, the screen plate 5 and the lower box 4 are in a concentric circle structure, the lower box 4 and the upper box 2 are in a concentric circle structure, and a hopper 7 is fixedly provided at the bottom of the lower box 4. The hopper 7 is conical.

[0027] Two sets of exhaust vents 6 are installed on the outer circumference of the lower housing 4. Both sets of exhaust vents 6 are connected to the interior of the lower housing 4, and the included angle between the two sets of exhaust vents 6 is 90 degrees.

[0028] Inspection doors 71 are installed at equal intervals on the outer circumference of the hopper 7. The inspection doors 71 are rectangular. Support rods A10 are installed on the outside of the hopper 7. Support rods B101 are installed on the top of the support rods A10.

[0029] like Figure 1 and Figure 2 As shown: The cylindrical bottom has no right-angle dead corners. Under the push of scraper 31 and the action of gravity, the wheat material can flow more smoothly along the arc-shaped inner wall. Whether it is discharged from the middle or the edge, it can reduce material residue. At the same time, there are no "dead corners" when cleaning the arc-shaped inner wall, which facilitates daily cleaning and maintenance and reduces the risk of material mold or contamination. The cylindrical design directly improves the heat dissipation uniformity, working efficiency, durability and operation convenience of the cooler by optimizing the core links such as material movement, airflow circulation and structural stress. It is highly compatible with the working logic of scraper 31 stirring and exhaust cooling.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling machine comprising an upper box (2), characterized in that: A reducer (1) is installed on the upper part of the upper housing (2), and a lower housing (4) is installed at the bottom of the upper housing (2). A support frame (8) is fixedly installed at the bottom of the lower housing (4). A drive cylinder (9) is installed on the side wall of the support frame (8). A main shaft (100) is installed inside the upper housing (2). A drive frame (3) is fixedly installed at the bottom of the main shaft (100). A scraper (31) is installed at the bottom of the drive frame (3). A screen plate (5) is installed inside the lower housing (4). A discharge gate plate (51) is installed on the screen plate (5).

2. A cooling machine according to claim 1, characterized in that: The output shaft of the reducer (1) is fixedly connected to the main shaft (100) via a coupling. A bearing seat (200) is sleeved on the outside of the main shaft (100), and the bearing seat (200) is fixedly connected to the upper center of the upper housing (2).

3. A cooling machine according to claim 2, characterized in that: The reducer (1) drives the drive frame (3) to rotate via the main shaft (100). Multiple sets of scrapers (31) are evenly installed at the bottom of the drive frame (3). The scrapers (31) are rectangular and are positioned directly above the sieve plate (5).

4. A cooling machine according to claim 3, wherein: The sieve plate (5) is circular, the sieve plate (5) and the lower box (4) are in a concentric circle structure, the lower box (4) and the upper box (2) are in a concentric circle structure, and a hopper (7) is fixedly installed at the bottom of the lower box (4), and the hopper (7) is conical.

5. A cooling machine according to claim 4, characterised in that: The hopper (7) has inspection doors (71) installed at equal intervals on its outer circumference. The inspection doors (71) are rectangular. A support rod A (10) is installed on the outside of the hopper (7). A support rod B (101) is installed on the top of the support rod A (10).

6. The cooling machine of claim 1, wherein: Two sets of exhaust vents (6) are installed on the outer circumference of the lower housing (4). Both sets of exhaust vents (6) are connected to the interior of the lower housing (4), and the included angle between the two sets of exhaust vents (6) is 90 degrees.

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