Drying and crushing all-in-one machine

Abstract

A drying and smashing all-in-one machine comprises a heating device and a smashing device which are internally communicated. The crushing device comprises a crushing device body and further comprises a discharging pipeline, a stock bin and an air extractor which are sequentially connected, a blade assembly used for crushing materials is arranged at the bottom of the crushing device body, a discharging opening connected with the discharging pipeline is formed in the upper portion of the crushing device body, and the air extractor is used for sucking the completely crushed materials into the stock bin through the discharging pipeline. A separation assembly used for gas-solid separation is arranged between the air extractor and the stock bin, and the completely-smashed materials enter the lower portion of the stock bin through the separation assembly. Due to the fact that the mass of the materials which are completely smashed is lower than that of the materials which are not completely smashed, the drying and smashing all-in-one machine sucks the materials which are completely smashed into the air exhaust pipeline in a negative pressure air suction mode, and therefore it is guaranteed that the materials are completely smashed, and the particle uniformity of the smashed materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, and more specifically, to the technical field of drying and crushing equipment. Background Art

[0002] An integrated drying and pulverizing machine is a crucial piece of equipment in many industrial fields, primarily used for pulverizing and drying materials. For example, Chinese patent number CN 211801128 U discloses a drying and pulverizing device comprising a heating device and a pulverizing device. The material is heated and dried by the heating device before entering the pulverizing device for pulverization. The pulverized material is then discharged through a discharge pipe below the pulverizing device. However, this device cannot guarantee complete pulverization of the material, resulting in the presence of larger particles in the pulverized material. Utility Model Content

[0003] The utility model aims to provide a drying and crushing all-in-one machine, which can not only dry and crush materials, but also ensure that the materials are completely crushed and improve the particle uniformity of the crushed materials.

[0004] The utility model is achieved through the following technical solutions:

[0005] A drying and crushing all-in-one machine comprises an internally connected heating device and a crushing device, and is characterized in that it also comprises a discharge pipe, a silo and an exhaust device connected in sequence, the bottom of the crushing device is provided with a blade assembly for crushing materials, and the top of the crushing device is provided with a discharge port connected to the discharge pipe, the exhaust device is used to suck the completely crushed materials into the silo through the discharge pipe, and a separation component for gas-solid separation is provided between the exhaust device and the silo, and the completely crushed materials enter the lower part of the silo through the separation component.

[0006] The blade assembly can use a combination of a motor and a rotating blade commonly used in the prior art, and the material is crushed by the rapid rotation and cutting of the blade. Since the completely crushed material is lighter than the incompletely crushed material, the exhaust device is used to evacuate the interior of the crushing device so that the completely crushed material is sucked into the discharge pipe, while the incompletely crushed material remains at the bottom of the crushing device and continues to be crushed until it is completely crushed. A separation component for gas-solid separation is provided between the exhaust device and the silo, and the completely crushed material in the discharge pipe is subjected to gas-solid separation by the separation component and then enters the lower part of the silo. The gas-solid separation components commonly used in the prior art include bag filters, cyclone separators, filter screens, etc.

[0007] Since the mass of the completely crushed material is lighter than that of the incompletely crushed material, this drying and crushing integrated machine uses negative pressure suction to suck the completely crushed material into the exhaust pipe, thereby ensuring that the material is completely crushed and improving the particle uniformity of the crushed material.

[0008] As a preferred embodiment of the present invention, the crushing device includes a shell and an exhaust pipe located inside the shell, the upper end of the exhaust pipe is connected to the discharge port, and the lower end of the exhaust pipe is provided with an air inlet for collecting the completely crushed material.

[0009] A sinking cavity is provided between the housing and the air extraction duct. Material to be crushed within the pulverizing device first enters the sinking cavity, sinks to the bottom of the pulverizing device, and is then completely crushed by the blade assembly before being drawn into the air extraction duct. The addition of the air extraction duct spatially separates the material sinking area from the material rising area, ensuring that all material entering the pulverizing device is crushed by the blade assembly. This also prevents chaotic internal airflow from preventing partially crushed material from entering the discharge duct, or preventing incompletely crushed material from being mistakenly drawn into the discharge duct. This further improves the particle uniformity of the crushed material and enhances work efficiency.

[0010] As a preferred embodiment of the present invention, the exhaust pipe includes an upper pipe connected to the discharge port and a lower pipe connected to the interior of the upper pipe, and the diameter of the lower pipe decreases as the height increases.

[0011] As the flow rate increases, the pressure of the fluid decreases. The design of the lower pipe with a diameter that decreases as the height increases can generate faster airflow, thereby forming a low-pressure area below. This helps to better absorb and more effectively capture the completely crushed material, thereby improving the extraction efficiency and reducing energy consumption.

[0012] As a preferred embodiment of the present invention, the heating device includes an air heater and a connecting pipe for providing hot air, one end of the connecting pipe is connected to the air heater, and the other end is connected to the crushing device, and a feed port is provided on the connecting pipe. The material enters the connecting pipe through the feed port and is heated and dried by the hot air.

[0013] Because hot air has good fluidity and wrapping properties, the hot air generated by the air heater can quickly and effectively dry the material. In addition, the connecting pipe is connected to the interior of the pulverizing device, so that the material that has not been completely dried can still be dried before entering the pulverizing device until it is completely dried and pulverized and then sucked into the exhaust pipe. This design not only improves drying efficiency, but also prevents wet material from sticking and affecting the pulverization effect, thereby improving subsequent pulverization efficiency.

[0014] As a preferred embodiment of the present invention, the shell is cylindrical, and the axial extension direction of the communicating pipe is tangent to the shell, so that the material to be crushed in the communicating pipe enters the sinking cavity of the shell tangentially with the air flow.

[0015] The tangential entry mechanism allows the material to rotate and sink to the bottom of the sinking chamber, helping to achieve more even distribution of the material within the pulverizer, thereby improving pulverization uniformity. Furthermore, the tangential entry of the material into the sinking chamber creates better airflow dynamics, ensuring airflow stability within the sinking chamber and preventing airflow disturbances that could affect smooth descent. This helps improve the airflow's dust-carrying capacity and control dust emissions during the pulverization process.

[0016] As a preferred embodiment of the present invention, the aspect ratio of the shell is ≥3.

[0017] The shell with a larger aspect ratio can allow the airflow to have more time and space to be distributed in the crushing area, thereby optimizing the airflow distribution, improving the crushing efficiency and dust control.

[0018] As a preferred embodiment of the present invention, the blade assembly includes a cutter disc, a movable knife located at the edge of the cutter disc, a fixed knife fixedly connected to the shell, and a motor that drives the cutter disc and the movable knife to rotate together, so that the material is crushed by the relative rotation of the movable knife and the fixed knife.

[0019] The material to be crushed is accumulated at the bottom edge of the crushing device through the sinking cavity, and is crushed by the blade assembly, namely the cutter disc, the movable blade and the fixed blade, driven by the motor. Through the relative rotation of the cutter disc and the movable blade, the material can be crushed quickly and effectively, thereby improving the crushing efficiency. The accumulation of materials at the bottom edge helps to ensure the uniformity of crushing, because all materials will pass through the relative action area of ​​the movable blade and the fixed blade. And the materials will not shift easily during the crushing process, because they are located at the bottom edge of the crushing device, which helps to maintain the stability and consistency of the crushing process. In addition, since the completely crushed materials are easily sucked into the exhaust pipe due to their mass, the rotation of the cutter disc can help to quickly suck the completely crushed materials into the interior of the exhaust organ, thereby improving work efficiency.

[0020] As a preferred embodiment of the present invention, the fixed knives and the movable knives are provided in multiple groups.

[0021] As a preferred embodiment of the present invention, the separation component includes a filter bag for adsorbing materials and a blowing device located above the filter bag, and the blowing device is used to blow the filter bag so that the materials fall to the bottom of the silo.

[0022] This separation component provides an efficient, fast and continuous material separation solution, helping to improve the overall efficiency of the production line while reducing downtime, with a simple structure and controllable costs.

[0023] In summary, the present invention has the following beneficial effects:

[0024] 1. Since the mass of the completely crushed material is lighter than that of the incompletely crushed material, this type of drying and crushing machine uses negative pressure suction to suck the completely crushed material into the exhaust pipe, thereby ensuring that the material is completely crushed and improving the particle uniformity of the crushed material.

[0025] 2. By adding an exhaust pipe, the material sinking area and the material rising area are spatially isolated to ensure that all the materials entering the crushing device can be crushed by the blade assembly. It can also prevent the internal chaotic airflow from causing some completely crushed materials to fail to enter the discharge pipe, or prevent incompletely crushed materials from being mistakenly sucked into the discharge pipe, further improving the particle uniformity of the crushed material and improving work efficiency.

[0026] 3. Hot air has good fluidity and wrapping properties. The hot air generated by the air heater can dry the material quickly and effectively. In addition, the connecting pipe is connected to the interior of the crushing device. The material that has not been completely dried can still be dried when entering the crushing device until it is completely dried and crushed and then sucked into the exhaust pipe.

[0027] 4. The tangential entry of the material to be pulverized allows it to rotate and sink to the bottom of the sinking chamber, helping to achieve more uniform distribution of the material within the pulverizer, thereby improving pulverization uniformity. Furthermore, the tangential entry of the material into the sinking chamber can produce better airflow dynamics, ensuring the stability of the airflow within the sinking chamber and avoiding airflow disturbances that could affect smooth descent. This helps to improve the dust entrainment capacity of the airflow and control dust emissions during the pulverization process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of the all-in-one machine;

[0029] Figure 2 Schematic diagram of the crushing device structure;

[0030] Figure 3 This is a top view of the crushing device;

[0031] Figure 4 Schematic diagram of the blade assembly structure;

[0032] Figure 5 Schematic diagram of separated components.

[0033] In the figure: 1. Heating device, 11. Air heater, 12. Connecting pipe, 13. Feed port, 2. Crushing device, 21. Blade assembly, 211. Cutter disc, 212. Moving knife, 213. Fixed knife, 214. Motor, 22. Discharge port, 23. Shell, 24. Exhaust pipe, 241. Upper pipe, 242. Lower pipe, 243. Air inlet, 25. Sinking cavity, 3. Discharge pipe, 4. Silo, 5. Exhaust device, 6. Separation assembly, 61. Filter bag, 62. Blowing device. DETAILED DESCRIPTION

[0034] The present invention will be described in further detail below with reference to the accompanying drawings.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0036] like Figure 1 、 2 One end of the connecting pipe 12 is connected to the air heater 11, and the other end is connected to the pulverizing device 2. The connecting pipe 12 is also provided with a feed port 13, through which the material to be dried and pulverized enters the connecting pipe 12. The air heater 11 is used to provide hot air to dry the material in the connecting pipe 12. The dried material to be pulverized enters the pulverizing device 2 for pulverization. Because the connecting pipe 12 is connected to the interior of the pulverizing device 2, any undried material can continue to be dried by the hot air after entering the pulverizing device 2.

[0037] The pulverizing device 2 comprises a housing 23 and an air extraction duct 24 located within the housing 23. A downward chamber 25 is provided between the housing 23 and the air extraction duct 24, communicating with the interior of the communication duct 12. Upon entering the pulverizing device 2, the material to be pulverized first enters the downward chamber 25, sinks to the bottom of the pulverizing device 2, and is then pulverized by the blade assembly 21. This assembly can utilize a conventional motor and rotating blade combination, which is commonly used in the prior art. The blades' rapid rotation cuts the material, achieving pulverization.

[0038] An air inlet 243 is provided at the lower end of the air extraction pipe 24. The completely dried and crushed material, being lighter in weight, can be drawn into the air extraction pipe 24 through the air inlet 243 due to the negative pressure. However, the incompletely crushed and partially dried material, being heavier, cannot be drawn into the air extraction pipe 24 and remains at the bottom, where it continues to be crushed and dried until it is completely dried and crushed and then drawn into the air extraction pipe 24.

[0039] The exhaust pipe 24 comprises an upper pipe 241 connected to the discharge port 22 and a lower pipe 242 connected to the interior of the upper pipe 241. The diameter of the lower pipe 242 decreases with increasing height. As the flow rate increases, the pressure of the fluid decreases. This design of the lower pipe 242 decreasing in diameter with increasing height generates faster airflow, creating a low-pressure zone below. This facilitates better suction and more effectively captures the crushed material, thereby improving extraction efficiency and reducing energy consumption.

[0040] The upper end of the exhaust pipe 24 communicates with the discharge pipe 3 through the discharge port 22. The other end of the discharge pipe 3 is connected to the silo 4 and the exhaust device 5. A separation assembly 6 for gas-solid separation is located between the exhaust device 5 and the silo 4. The dried and pulverized material in the exhaust pipe 24 passes through the discharge pipe 3 and the separation assembly 6 in sequence and enters the lower portion of the silo 4. Common gas-solid separation assemblies 6 in the prior art include bag filters, cyclone separators, and filter screens.

[0041] Since the mass of the material after complete drying and crushing is lighter than that of the material after complete drying and crushing, this drying and crushing machine uses negative pressure suction to draw the completely dried and crushed material into the exhaust pipe 24, thereby ensuring the dryness and particle uniformity of the material collected in the silo 4. In addition, by adding the exhaust pipe 24, the material sinking area and the material rising area are spatially separated, ensuring that the material entering the crushing device 2 can be completely crushed by the blade assembly 21. It can also prevent the chaotic internal airflow from causing some completely crushed material to fail to enter the discharge pipe 3, or prevent incompletely crushed material from being mistakenly sucked into the discharge pipe 3, further improving the particle uniformity of the crushed material and improving work efficiency.

[0042] like Figure 3 As shown, as a preferred embodiment of this embodiment, the connecting pipe 12 is tangential to the pulverizing device 2, so that the material to be pulverized in the circulation pipe enters the sinking chamber 25 tangentially with the airflow. The tangential entry method allows the material to be pulverized to rotate and sink to the bottom of the sinking chamber 25, which helps to obtain a more uniform distribution of the material inside the pulverizing device 2, thereby improving the uniformity of the pulverization. At the same time, the tangential entry of the material into the sinking chamber 25 can produce better airflow dynamics, ensure the stability of the airflow in the sinking chamber 25, and avoid airflow chaos that affects the smooth sinking of the logistics. It helps to improve the dust carrying capacity of the airflow and control dust emissions during the pulverization process.

[0043] As a preference of this embodiment, the aspect ratio of the housing 23 is ≥ 3. The housing 23 with a larger aspect ratio can allow the airflow to have more time and space to be distributed in the crushing area, thereby optimizing the airflow distribution, improving the crushing efficiency and dust control.

[0044] like Figure 4As shown, as a preferred embodiment of this invention, the blade assembly 21 comprises a cutter disc 211, a movable blade 212 located at the edge of the cutter disc 211, a fixed blade 213 fixedly connected to the housing 23, and a motor 214 that drives the cutter disc 211 and the movable blade 212 to rotate together. Material pulverization is achieved through the relative rotation of the movable blade 212 and the fixed blade 213. Multiple sets of fixed blades 213 and movable blades 212 are provided. The material to be pulverized is deposited at the bottom edge of the pulverizing device 2 through the sinking chamber 25 and pulverized by the blade assembly 21, namely the cutter disc 211, movable blade 212, and fixed blade 213, driven by the motor 214. The relative rotation of the cutter disc 211 and movable blade 212 allows the material to be pulverized quickly and efficiently, improving pulverization efficiency. The accumulation of material at the bottom edge helps ensure uniform pulverization, as all material passes through the relative interaction area of ​​the movable blade 212 and the fixed blade 213. Furthermore, the materials will not be easily displaced during the pulverization process because they are located at the bottom edge of the pulverizing device 2, which helps maintain the stability and consistency of the pulverization process. In addition, since the completely pulverized materials are easily sucked into the suction pipe 24 due to their mass, the rotation of the cutter head 211 can help to quickly suck the completely pulverized materials into the suction pipe, thereby improving work efficiency.

[0045] like Figure 5 As shown, as a preferred embodiment of this invention, the separation assembly 6 includes a filter bag 61 for adsorbing the material and a blowing device 62 located above the filter bag 61. The blowing device 62 is used to blow the filter bag 61 to cause the material to fall to the bottom of the silo 4. This separation assembly 6 provides an efficient, rapid, and continuous material separation solution, which helps improve the overall efficiency of the production line while reducing downtime. It also has a simple structure and controllable costs.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drying and crushing integrated machine, comprising a heating device (1) and a crushing device (2) which are connected to each other, characterized in that: The invention also comprises a discharge pipe (3), a silo (4) and an exhaust device (5) connected in sequence, wherein a blade assembly (21) for crushing materials is provided at the bottom of the crushing device (2), a discharge port (22) connected to the discharge pipe (3) is provided above the crushing device (2), the exhaust device (5) is used to suck the crushed materials into the silo (4) through the discharge pipe (3), and a separation assembly (6) for gas-solid separation is provided between the exhaust device (5) and the silo (4), and the crushed materials enter the lower part of the silo (4) through the separation assembly (6).

2. The drying and crushing integrated machine according to claim 1, characterized in that: The pulverizing device (2) comprises a shell (23) and an air extraction pipe (24) located inside the shell (23); the upper end of the air extraction pipe (24) is connected to the discharge port (22); and the lower end of the air extraction pipe (24) is provided with an air inlet (243).

3. The drying and crushing integrated machine according to claim 2, characterized in that: The air extraction pipeline (24) comprises an upper pipeline (241) in communication with the discharge port (22) and a lower pipeline (242) in communication with the interior of the upper pipeline (241), wherein the diameter of the lower pipeline (242) decreases as the height increases.

4. The drying and crushing integrated machine according to claim 2, characterized in that: The heating device (1) comprises an air heater (11) and a connecting pipe (12), one end of the connecting pipe (12) is connected to the air heater (11), and the other end is connected to the pulverizing device (2), and a feed port (13) is provided on the connecting pipe (12), and the material enters the connecting pipe (12) through the feed port (13) and is heated and dried by the air heater (11).

5. The drying and crushing integrated machine according to claim 4, characterized in that: The shell (23) is cylindrical, and the axial extension direction of the connecting pipe (12) is tangential to the shell (23), so that the material to be crushed in the connecting pipe (12) enters the shell (23) tangentially along with the air flow.

6. The drying and crushing integrated machine according to claim 2, characterized in that: The aspect ratio of the shell (23) is ≥3.

7. The drying and crushing integrated machine according to claim 2, characterized in that: The blade assembly (21) comprises a cutter disc (211), a movable blade (212) located at the edge of the cutter disc (211), a fixed blade (213) fixedly connected to the housing (23), and a motor (214) that drives the cutter disc (211) and the movable blade (212) to rotate together, and the material is crushed by the relative rotation of the movable blade (212) and the fixed blade (213).

8. The drying and crushing integrated machine according to claim 7, characterized in that: The fixed knife (213) and the movable knife (212) are both provided in multiple groups.

9. The drying and crushing integrated machine according to any one of claims 1 to 8, characterized in that: The separation component (6) comprises a filter bag (61) for adsorbing materials and a blowing device (62) located above the filter bag (61), wherein the blowing device (62) is used to blow the filter bag (61) so that the materials fall below the silo (4).

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