Crushing and drying all-in-one machine

Abstract

The utility model discloses a crushing and drying all-in-one machine in the technical field of material drying and screening, and aims to solve the problem that materials are easily accumulated at the lower part of equipment to influence the efficiency and normal operation of the equipment when the materials are dried by airflow in the prior art. The device comprises a shell, a first ventilation pipe is arranged on the lower portion of the shell in a communicating mode, a positioning plate is arranged on the portion, located above the first ventilation pipe, in the shell, a guide cylinder close to the inner wall of the shell is arranged on the positioning plate, a shaft rod is rotationally installed below the shell, and a smashing disc rotating in the shell is arranged at the top end of the shaft rod; the crushing disc is arranged at the position above the guide cylinder, and the guide cylinder is used for limiting an air source to penetrate through an area between the guide cylinder and the shell; the crushing device is used for reducing the phenomenon that wet materials are directly accumulated at the bottommost part of the crushing cylinder, is beneficial to preventing the transmission part of the crushing disc from being blocked by the materials, is also beneficial to improving the processing degree of the materials, and is beneficial to improving the crushing efficiency of equipment.

Description

Technical Field

[0001] The utility model relates to a combined crushing and drying machine, belonging to the technical field of material drying and screening. Background Art

[0002] The crushing and screening of wet materials usually need to be coordinated with a drying streamline. A stable transfer streamline is formed by a material transfer mechanism and a crushing mechanism. The matching methods between various mechanisms are cumbersome and costly. At present, an air flow crushing and drying integrated machine is proposed, which can directly supply wet materials in the device, dry the materials while crushing them, and then use a classification wheel to screen the blown materials until the particle size meets the material requirements. In this way, a crushing disc is used to crush the materials, and then the air flow blows the fine particles upward from below the crushing part. However, for the large particle materials supplied from above, they are easily thrown towards the inner wall of the crushing cylinder under the action of centrifugal force. After passing through the gaps of the crushing disc, they are likely to accumulate at the bottom of the crushing cylinder, which not only easily blocks the transmission system of the crushing mechanism, but also fails to fully carry out air flow drying and crushing of the materials, resulting in insufficient actual processing efficiency. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a combined crushing and drying machine, which is used to reduce the phenomenon that wet materials directly accumulate at the bottom of the crushing cylinder, helps prevent the transmission part of the crushing disc from being blocked by materials, also helps improve the processing degree of materials, and is beneficial to improving the crushing efficiency of the equipment.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A combined crushing and drying machine provided by the utility model includes a housing. A first ventilation pipe is connected and arranged below the housing. A positioning plate is arranged inside the housing above the first ventilation pipe. A guide cylinder close to the inner wall of the housing is arranged on the positioning plate. A shaft rod is rotatably installed below the housing. A crushing disc that rotates inside the housing is arranged at the top of the shaft rod. The crushing disc is arranged at a position above the guide cylinder. A plurality of crushing blades are arranged in a circumferential array on the periphery of the crushing disc. The guide cylinder is used to limit the air source from passing through the area between the guide cylinder and the housing. A first feed pipe is also arranged on the housing above the crushing disc. An air outlet pipe and a classification wheel assembly for screening the particle size are arranged at the top of the housing.

[0006] Specifically, a positioning ring is fixedly installed on the outer wall of the guide cylinder. Brush hairs are arranged on the positioning ring. The brush hairs are in contact with the bottom surface of the crushing disc. The brush hairs are densely arranged with each other to form a filter layer for filtering particles.

[0007] Specifically, a second air passage is provided inside the draft tube, and the second air passage is used to guide the air source to pass through the inside of the draft tube and blow out after passing through the bristles.

[0008] Specifically, ventilation holes are provided on the draft tube, and a second ventilation pipe communicating with the ventilation holes is provided on the outer side of the housing. The ventilation holes are used to lead out the air flow of the second ventilation pipe from the inner side area of the draft tube.

[0009] Specifically, a flow blocking ring is provided on the draft tube, and the flow blocking ring is used to change the concentrated gas blown out from the ventilation holes into a diffused gas.

[0010] Specifically, a flow blocking inclined surface corresponding to the ventilation holes is provided on the flow blocking ring. The flow blocking inclined surface is arranged at an obtuse angle with the blowing direction of the gas, and the blowing direction of the flow blocking inclined surface points to the position of the bristles.

[0011] Specifically, a connecting pipe is provided at the bottom of the housing, and the other side of the connecting pipe is connected to the upper position of the housing.

[0012] Specifically, a detachable pipe is provided through a flange at the lowermost connecting part of the connecting pipe.

[0013] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0014] By arranging a draft tube inside the cylinder body of the present utility model and designing that the intake passage of the warm air can only flow upward through the part between the draft tube and the inner wall of the cylinder body, the wind pressure between the draft tube and the inner wall of the cylinder body can be enhanced, which helps to increase the falling distance of large particles after being thrown off in this area. It is beneficial for large-particle wet materials to be affected by a large wind pressure and return to the crushing area of the crushing mechanism to be crushed again, which is beneficial to improving the processing efficiency of the materials and helps to prevent the materials from accumulating downward, reducing the maintenance work requirements and having good economic benefits. Description of the Drawings

[0015] Figure 1 is the overall structural schematic diagram of the crushing and drying integrated machine provided by the embodiment of the present utility model;

[0016] Figure 2 is the side view of the crushing and drying integrated machine provided by the embodiment of the present utility model;

[0017] Figure 3 is the present utility model Figure 2 The A-A direction sectional view of the crushing and drying integrated machine provided by the embodiment;

[0018] Figure 4 is the present utility model Figure 3 The B-B direction sectional view of the crushing and drying integrated machine provided by the embodiment;

[0019] Figure 5 This utility model Figure 3 A cross-sectional view of the integrated crushing and drying machine provided in the embodiment in the CC direction;

[0020] Figure 6 This utility model Figure 3 A cross-sectional view of the integrated crushing and drying machine provided in the embodiment in the DD direction;

[0021] Figure numerals: 1, shell; 2, first ventilation pipe; 3, crushing disc; 4, crushing blade; 5, first feed pipe; 6, air outlet pipe; 7, grading wheel assembly; 8, positioning plate; 9, guide tube; 10, positioning ring; 11, bristles; 12, baffle ring; 13, ventilation hole; 14, connecting pipe; 15, detachable pipe; 16, vent; 17, second ventilation pipe; 18, shaft. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances. Example

[0025] An integrated crushing and drying machine provided by an embodiment of the present utility model is used to reduce the phenomenon that wet materials directly accumulate at the bottom of the crushing cylinder, which helps prevent the transmission part of the crushing disc from being jammed by the materials, also helps improve the processing degree of the materials, and is beneficial to improving the crushing efficiency of the equipment. In order to realize the structural function of the integrated machine, the mechanism set here includes a housing 1, and a first ventilation pipe 2 is connected and arranged below the housing 1. The first ventilation pipe 2 is used to connect to a hot air source and provide an upward hot air flow into the equipment. The crushed materials can be dried under the action of the hot air flow, and the dried fine particles after crushing are blown upward to realize the collection of small dried particles. In order to prevent large particles from accumulating and falling at the bottom of the equipment and being difficult to crush and dry again, a positioning plate 8 is arranged inside the housing 1 and above the first ventilation pipe 2, and a guide cylinder 9 close to the inner wall of the housing 1 is arranged on the positioning plate 8. As Figure 3 and Figure 6 shown, an air vent 16 is provided in the part of the positioning plate 8 between the guide cylinder 9 and the housing 1 for conducting the hot air flow. In order to realize the crushing work of the materials in the device to facilitate the rapid drying of the materials, a shaft rod 18 is rotatably installed below the housing 1. As Figure 3 and Figure 4 shown, a crushing disc 3 that rotates inside the housing 1 is fixedly provided at the top end of the shaft rod 18. The crushing disc 3 is arranged above the guide cylinder 9. A number of crushing blades 4 are arranged in a circumferential array on the periphery of the crushing disc 3, which can be used to cut and crush the materials passing through this position. As a preferred implementation method, texture protrusions can be set on the upper surface of the crushing disc 3, which can be used to break the materials falling above the crushing disc 3 or guide the materials to the side. The guide cylinder 9 is used to limit the air source from passing through the area between the guide cylinder 9 and the housing 1, avoiding the materials from directly accumulating below the equipment after falling through the gaps between the crushing discs 3. In order to realize the feeding of the system, a first feed pipe 5 is also arranged on the housing 1 and above the crushing disc 3, and the feeding can be extruded by a twin-screw mechanism. Details are not elaborated here too much. In order to collect the dried materials that reach the standard particle size, an air outlet pipe 6 and a grading wheel assembly 7 for screening the particle size of the particles can be arranged at the top of the housing 1. When the system mechanism is working, first, wet materials enter from the first feed pipe 5. After being broken by the crushing disc 3, they are dried by the high-temperature air flow and blown upward to the position of the air outlet pipe 6 above. When the particle size of the dried material particles does not meet the screening requirements, they will fall back to the crushing area and be crushed again. The materials that reach the required particle size will be blown out. When the large particle size materials thrown out pass through the position between the guide cylinder 9 and the cylinder wall of the housing 1, due to the smaller ventilation diameter, they can be subjected to a greater wind pressure effect and move in the reverse direction, and then flow back to the crushing mechanism position for crushing again. Thus, the possibility of the materials directly accumulating at the bottom of the equipment is effectively reduced, and a higher crushing efficiency can be achieved, and the situation of blockage caused by the transmission part being affected by particles can be avoided, having good practical prospects.

[0026] An integrated crushing and drying machine provided by an embodiment of the present utility model. Considering that even if the flow guide cylinder 9 is increased to expand the range where the airflow hinders the falling of particles, it is still impossible to completely avoid the situation where particles directly accumulate at the bottom of the equipment during the impact process. At this time, in order to reduce the impact of the falling particles on the transmission part, a positioning ring 10 can be fixedly installed on the outer wall of the flow guide cylinder 9, and bristles 11 are provided on the positioning ring 10, as Figure 3 shown. The bristles 11 are arranged to contact the bottom surface of the crushing disc 3, and the bristles 11 are densely arranged with each other to form a filtering layer for filtering particles. Refer to Figure 3 shown. When there is a tendency for particles to accumulate downward, the reserved gap between the flow guide cylinder 9 and the crushing disc 3 easily allows particles to enter the interior of the flow guide cylinder 9, which is likely to cause particles to get stuck in the gaps of the traditional structure. However, through the arrangement of the bristles 11 to filter the particles, the possibility of particles entering the interior of the flow guide cylinder 9 can be effectively reduced, that is, the impact on the transmission system in this part can be reduced. In some embodiments, the transmission system is preferably completely sealed. As Figure 3 shown, the flow guide cylinder 9 can extend downward in the reverse direction to protect the entire transmission system.

[0027] An integrated crushing and drying machine provided by an embodiment of the present utility model. In order to facilitate the cleaning of the particulate matter intercepted by the bristles 11, a second air passage can be provided inside the flow guide cylinder 9. The second air passage is used to guide the air source to pass through the interior of the flow guide cylinder 9 and then blow out after passing through the gaps of the bristles 11. This method is more conducive to the maintenance and cleaning of dust on the equipment and helps to extend the service life of the device. In order to specifically realize the diversion of the air passage, ventilation holes 13 can be provided on the flow guide cylinder 9, and a second ventilation pipe 17 communicating with the ventilation holes 13 can be provided on the outer side of the housing 1. The ventilation holes 13 are used to lead out the airflow of the second ventilation pipe 17 from the inner area of the flow guide cylinder 9.

[0028] An integrated crushing and drying machine provided by an embodiment of the present utility model. Considering that the gas directly blown out from the ventilation holes 13 is mostly concentrated gas, in order to improve the uniformity of gas diffusion so that it blows out in a diffused manner to the position of the bristles 11, a flow blocking ring 12 can be provided on the flow guide cylinder 9. The flow blocking ring 12 is used to change the concentrated gas blown out from the ventilation holes 13 into diffused gas. As a preferred implementation manner, a flow blocking inclined surface corresponding to the ventilation holes 13 can be provided on the flow blocking ring 12. Refer to Figure 3 shown. The flow blocking inclined surface is arranged at an obtuse angle with the blowing direction of the gas, which is beneficial to forming a passage for the gas to flow to both sides after collision, and the blowing direction of the flow blocking inclined surface points to the position of the bristles 11 for blowing out. It can act simultaneously during the operation of the mechanism or supply gas separately in the maintenance mode, thereby improving the operability of the equipment and its good anti-blocking ability.

[0029] An integrated crushing and drying machine provided by an embodiment of the present utility model. In order to facilitate the return of particulate matter falling at the bottom of the device to the crushing part position, a connecting pipe 14 can be provided at the bottom of the housing 1, and the other side of the connecting pipe 14 is connected to the upper position of the housing 1, so as to blow the particulate impurities falling at the bottom back to the crushing position.

[0030] In order to prevent the particulate matter from blocking below the connecting pipe 14, the connecting pipe 14 can be cleaned regularly. Specifically, a detachable pipe 15 can be provided through a flange at the lowest connecting part of the connecting pipe 14. As Figure 1 shown, when cleaning, the detachable pipe 15 can be removed to pour out the particulate matter.

[0031] 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 of this technology, without departing from the technical principle of the present utility model, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present utility model.

Claims

1. A crushing and drying integrated machine, characterized in that: The invention comprises a shell (1), wherein a first ventilation pipe (2) is connected to the lower part of the shell (1), a positioning plate (8) is arranged in the part of the shell (1) located above the first ventilation pipe (2), a guide tube (9) is arranged on the positioning plate (8) and is close to the inner wall of the shell (1), a shaft (18) is rotatably mounted on the lower part of the shell (1), a pulverizing disc (3) is arranged at the top end of the shaft (18) and rotates in the shell (1), the pulverizing disc (3) is arranged at a position above the guide tube (9), a plurality of pulverizing blades (4) are arranged in a circular array on the circumference of the pulverizing disc (3), the guide tube (9) is used to limit the air source from passing through the area between the guide tube (9) and the shell (1), a first feed tube (5) is also arranged on the part of the shell (1) located above the pulverizing disc (3), and an air outlet pipe (6) and a grading wheel assembly (7) for screening the particle size are arranged on the top of the shell (1).

2. The integrated crushing and drying machine according to claim 1, characterized in that: A positioning ring (10) is fixedly mounted on the outer wall of the guide cylinder (9), and bristles (11) are provided on the positioning ring (10). The bristles (11) are in contact with the bottom surface of the pulverizing disk (3), and the bristles (11) are densely arranged to form a filter layer for filtering particles.

3. The integrated crushing and drying machine according to claim 2, characterized in that: A second air passage is provided inside the guide cylinder (9), and the second air passage is used to guide the wind source to pass through the inside of the guide cylinder (9) and be blown out after passing through the bristles (11).

4. The integrated crushing and drying machine according to claim 3, characterized in that: The guide cylinder (9) is provided with a ventilation hole (13), and the outer side of the shell (1) is provided with a second ventilation pipe (17) connected to the ventilation hole (13), and the ventilation hole (13) is used to guide the airflow of the second ventilation pipe (17) out from the inner area of ​​the guide cylinder (9).

5. The integrated crushing and drying machine according to claim 4, characterized in that: The guide tube (9) is provided with a flow-blocking ring (12), and the flow-blocking ring (12) is used to convert the concentrated gas blown out of the ventilation hole (13) into diffused gas.

6. The integrated crushing and drying machine according to claim 5, characterized in that: The baffle ring (12) is provided with a baffle bevel corresponding to the ventilation hole (13), the baffle bevel is arranged at an obtuse angle to the blowing direction of the gas, and the blowing direction of the baffle bevel points to the position of the bristles (11).

7. The integrated crushing and drying machine according to claim 1, characterized in that: A connecting pipe (14) is provided at the bottom of the shell (1), and the other side of the connecting pipe (14) is connected to the upper position of the shell (1).

8. The integrated crushing and drying machine according to claim 7, characterized in that: The lowermost communicating portion of the communicating pipe (14) is provided with a detachable pipe (15) via a flange.

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