KR200355884Y1 - Environment-frandly milling apparatus - Google Patents

Abstract

The present invention relates to a pulverizer, a raw material is introduced into the hopper gradually goes down to discharge to the lower end of the inner diameter; A milling chamber in which a hammer assembly for crushing the raw material supplied from the hopper is rotatably received; A storage container for storing the pulverized product discharged from the milling chamber; A bag filter provided to communicate with an upper portion of the storage container and collecting and filtering dust diffused out of the storage container when the pulverized material is discharged; A shielding housing accommodating the bag filter and having an exhaust port formed at one side thereof; And an exhaust fan providing a suction force to the inside of the shielded housing through the exhaust port.

According to the present invention, the environment of the workplace can be maintained comfortably, and the work speed can be improved.

Description

Environment-Friendly Grinding Equipment {ENVIRONMENT-FRANDLY MILLING APPARATUS}

The present invention relates to an environment-friendly crushing device, and more particularly, in the process of pulverizing various raw materials, the dust is prevented from being diffused into the atmosphere to keep the environment of the workplace pleasant and to suppress the generation of noise. The present invention relates to an environmentally friendly grinding device capable of improving the working speed through rapid discharge of dust and air.

Various industrial materials consisting of fine powder particles, such as cosmetics, paints, and abrasives, are usually manufactured by mixing a plurality of raw materials and then milling the fine particles into fine particles.

Figure 1 shows the configuration of a conventional 'hammer mill' corresponding to a representative example of the grinding device. Referring to the drawings, the hammer mill has a hopper 10 for inputting a mixture of raw materials, a milling chamber 15 for crushing the mixture supplied from the hopper 10, and a storage container for containing the pulverized product. 20 and a bag filter 25 for collecting dust.

The hammer mill configured as described above operates the raw material mixture introduced into the hopper 10 into the milling chamber 15 and rotates a predetermined hammer assembly (not shown) provided in the milling chamber 15 at high speed. As a result, a pulverization treatment is performed on the raw material mixture. The pulverized product produced by the pulverizing treatment is contained in the storage container 20 provided at the lower part of the milling chamber 15. At this time, dust and air, which are discharged together with the pulverized product, are diffused into the bag filter 25. Ingress and filtered.

However, the conventional hammer mill has a problem that the extreme noise generated in the milling chamber 15 is applied in the workplace via the bag filter 25 because the bag filter 25 is always exposed to the atmosphere. The fine dust penetrating the bag filter 25 diffuses into the atmosphere of the workplace, causing air pollution. On the other hand, the air pressure in the bag filter 25 rises excessively and passes through the milling chamber 15 to the hopper 10. Dust and air flow back in the direction of) often occurs.

On the other hand, looking at the hammer assembly mounting structure of the conventional hammer mill, it can be seen that the center of rotation of the hammer assembly is fitted to the rotary shaft of the drive motor, but the bearing assembly is coupled to both sides of the rotary shaft with the hammer assembly in between. According to this structure, the assembly and disassembly of the hammer assembly is very difficult, so that the cleaning of the inside of the milling chamber 15 and the hammer assembly is not easy. Will cause.

The present invention was devised to solve the above problems, and through the bag filter to block the spread of noise and dust into the atmosphere of the workplace, to prevent dust / air backflow to the milling chamber side, forced exhaust The purpose is to provide an environment-friendly grinding device that can improve the working speed through the action.

Another object of the present invention is to provide an environmentally friendly grinding device that is easy to assemble and dismantle the hammer assembly to the milling chamber and to the inside of the milling chamber and the hammer assembly.

The following drawings attached to this specification are illustrative of the preferred embodiments of the present invention, and together with the detailed description of the present invention to serve to further understand the technical spirit of the present invention, the present invention is a matter described in such drawings It should not be construed as limited to.

1 is a block diagram of a hammer mill according to the prior art.

Figure 2 is a block diagram of an environmentally friendly grinding device according to a preferred embodiment of the present invention.

3 is an exploded perspective view showing the assembly structure of the hammer assembly in FIG.

4 is a plan view showing the opening and closing structure of the milling chamber in FIG.

FIG. 5 is a side sectional view showing the configuration of a bag filter in FIG. 2; FIG.

<Description of Main Reference Signs in Drawing>

100 ... hopper 101 ... screw member

Milling chamber 103 Hammer assembly

104 ... Rebound Plate 105 ... Perforated Plate

106 Storage container 107 Shield housing

108 ... Guide rod 109 ... Bag filter

110 Support rod 111 Exhaust vent

112 Exhaust fan 114a, 114b Hinge pins

116 Lock Bolt 117 Cover

118 rotating shaft 119 thread

120 ... fastening ring

Environmentally-friendly crushing device according to the present invention to achieve the above object, the hopper gradually decreases the inner diameter while going to the bottom so that the raw material is discharged to the bottom; A milling chamber in which a hammer assembly for crushing the raw material supplied from the hopper is rotatably received; A storage container for storing the pulverized product discharged from the milling chamber; A bag filter provided to communicate with an upper portion of the storage container and collecting and filtering dust diffused out of the storage container when the pulverized material is discharged; A shielding housing accommodating the bag filter and having an exhaust port formed at one side thereof; And an exhaust fan providing suction force to the inside of the shielding housing through the exhaust port. It includes.

Preferably, the present invention may further include a support rod fixed vertically in the bag filter to mount the bag filter.

The milling chamber optionally includes a lid hinged to open the interior; A rotating shaft connected to a driving motor to become a rotation shaft of the hammer assembly, the projection shaft protruding in the cover direction so that the rotation center of the hammer assembly is detachably fitted, and a thread formed on an outer circumference of the end thereof; And a coupling ring coupled to the thread of the rotary shaft to fix the hammer assembly to the rotary shaft.

In addition, the hinge coupling portion of the cover, it is preferably provided with a pair of hinge pins that are spaced apart from each other, but at least one is removably fitted.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 shows the configuration of the grinding apparatus according to a preferred embodiment of the present invention.

Referring to FIG. 2, the present invention provides a hopper 100 that provides a raw material inlet, a milling chamber 102 in which a hammer assembly 103 is rotatably housed, and the milling chamber 102 to contain a pulverized material. Storage container 106 provided below the, and a shielding housing 107 and the exhaust fan 112 for collecting and exhausting dust.

Hopper 100 has a structure in which the inner diameter is gradually reduced while the raw material to be crushed to be injected and discharged to the bottom to form a raw material inlet.

The raw material introduced into the hopper 100 is supplied to the milling chamber 102 in communication with the hopper 100. At this time, the screw member 101 that rotates between the hopper 100 and the milling chamber 102 may be further provided to increase the raw material supply efficiency. The screw member 101 is rotatably installed around its long axis to push the raw material introduced through the hopper 100 into the inner space of the milling chamber 102 during rotation.

In the milling chamber 102, as shown in more detail in FIG. 3, the hammer assembly 103 is rotatably housed, and a half foot plate 104 having a corrugated structure is installed at an approximately upper half of the inner wall. An approximately perforated plate 105 facing the 104 is provided with a perforated plate 105 for discharging the pulverized product. According to this configuration, the hammer assembly 103 is rotated with respect to the rebound plate 104 to pulverize the raw material, and the resulting pulverized product is discharged downward through the perforated plate 105.

The hammer assembly 103 has a structure in which a plurality of grinding hammers 103b are periodically provided along the outer circumference of the body 103a. Preferably, the hammer assembly 103 is connected to a drive motor (not shown) to receive a rotational force, but the hollow 103c of the rotating shaft 118 projecting in the direction of the open surface past the inner center of the milling chamber 102. It is attached by being detachably fitted. At this time, the thread 119 is formed on the outer periphery of the end of the rotary shaft 118, the fastening ring 120 is fitted to the screw 119 to firmly fix the hammer assembly 103 to the rotary shaft 118. Can be.

The cover 117 for opening and closing the opening surface is hinged to the body 113 of the milling chamber so as to conveniently open the milling chamber 102 to assemble or disassemble the hammer assembly 103. Here, the hinge coupling portion 114 of the cover 117 is provided with a pair of hinge pins (114a, 114b) spaced apart from each other as shown in Figure 4 by inserting at least one hinge pin detachably The locking function for the cover 117 may be performed. That is, when the cover 117 and the support member 115 is to be rotated, the cover 117 can be opened or closed because the pivoting action is made freely by removing any hinge pin. On the contrary, in the state in which the hinge pins are all plugged, the rotation is not performed, and thus the locking function for the cover 117 may be performed.

Additionally, the cover 117 may further include a locking bolt 116 for advancing the cover 117 in the direction of the milling chamber 102 with respect to the support member 115. According to this configuration, the milling chamber 102 by advancing the cover 117 in the direction of the body 113 of the milling chamber by tightening the locking bolt 116 in a state in which the support member 115 is rotated to perform the closing operation. The open side of the can be completely sealed. Here, the locking bolt 116 and the cover 117 is not completely fixed, it is preferably coupled to be slightly movable to improve the adhesion with the body 113 of the milling chamber.

Below the milling chamber 102, a storage container 106 for accommodating the pulverized product discharged from the perforated plate 105 is installed. Preferably, the storage container 106 installed up and down is fastened to a predetermined support frame 122 fixed to one side of the lower side of the milling chamber 102 at the time of lifting, thereby substantially being hermetically coupled to the milling chamber 102. To achieve.

An exhaust passage 121 is provided at one side of the support frame 122 to cover the pulverized product discharge area of the milling chamber 102 and the internal space of the storage container 106 with the bag filter 109 inside the shielded housing 107. Communicate.

The bag filter 109 illustrated in FIG. 5 collects and filters dust diffused and discharged through the exhaust passage 121, and preferably includes an internal support rod 110 fixed vertically on a predetermined support plate 121a. It is mounted by the shield housing, and is received by the shielding housing 107.

The shielding housing 107 is installed to be elevated up and down along the vertical guide rod 108, and is preferably seated on the support plate 121a in a hermetically sealed state while receiving the bag filter 109 when descending. In addition, an exhaust port 111 is provided above the shielding housing 107 and extends to the exhaust fan 112. The exhaust fan 112 provides suction force to the inside of the shielding housing 107 to prevent excessive increase in the internal air pressure of the bag filter 109 while forcibly preventing fine dust and air in the shielding housing 107. To exhaust.

Then, the operation of the environment-friendly grinding device according to a preferred embodiment of the present invention having the configuration as described above will be described.

First, when the raw material to be crushed into the hopper 100, the raw materials are pushed by the screw member 101 that rotates in the lower portion of the hopper 100 is introduced into the milling chamber 102. Subsequently, the raw materials introduced into the milling chamber 102 are crushed between the rotating hammer assembly 103 and the rebound plate 104 and discharged to the storage container 106 below the milling chamber 102 through the perforated plate 105. do.

The dust and air discharged together with the discharge of the pulverized product are introduced into the shielding housing 107 through the discharge region 121 of the milling chamber 102 and the exhaust passage 121 in communication with the storage container 106. Here, the inflow operation of the dust and air is made by the exhaust fan 112 for providing a suction force to the inside of the shielding housing 107 as well as the natural diffusion force.

Dust of the pulverized material introduced into the shielding housing 107 is filtered by the bag filter 109, and the fine dust and air passing through the bag filter 109 are passed through the exhaust port 111 above the shielding housing 107. Discharged to the exhaust fan 112 (see the arrow in Fig. 5). In addition, the noise introduced into the bag filter 109 together with the dust and air is blocked by the shielding housing 107.

On the other hand, after the above-mentioned grinding process is completed, it is necessary to remove the residual grinding matter in the milling chamber 102, after opening the cover 117 of the milling chamber 102 exposed to the central portion of the hammer assembly 103 When the fastening ring 120 is released and the hammer assembly 103 is separated from the rotating shaft 118, the disassembly is easily performed, and the washing operation for the inner space of the milling chamber 102 and the hammer assembly 103 can be performed. have.

In the above, preferred embodiments of the present invention have been described with reference to the accompanying drawings. Here, the terms or words used in the present specification and claims should not be construed as being limited to ordinary or dictionary meanings, but should be construed as meanings and concepts corresponding to the technical spirit of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical ideas of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

According to the present invention, it is possible to prevent the dust from spreading the pulverized powder from the bag filter into the atmosphere of the workplace, and it is possible to block the emission of noise, which has the advantage of maintaining a comfortable working environment.

In addition, the discharge of fine dust and air by the forced exhaust method prevents the flow of dust back to the milling chamber, the hopper and the like to improve the work speed compared to the prior art, thereby increasing the productivity There is.

In addition, the present invention also has the advantage that the assembly and disassembly of the hammer assembly is easy to perform a convenient and efficient cleaning operation.

Claims (4)

Hopper gradually decreases the inner diameter while going to the bottom so that the raw material is discharged to the bottom; A milling chamber in which a hammer assembly for crushing the raw material supplied from the hopper is rotatably received; A storage container for storing the pulverized product discharged from the milling chamber; A bag filter provided to communicate with an upper portion of the storage container and collecting and filtering dust diffused out of the storage container when the pulverized material is discharged; A shielding housing accommodating the bag filter and having an exhaust port formed at one side thereof; And And an exhaust fan for providing suction to the inside of the shielded housing through the exhaust port. The method of claim 1, And a support rod fixed vertically in the bag filter to mount the bag filter. The method of claim 1, wherein the milling chamber, A lid hinged to selectively open and close the open surface; A rotating shaft connected to a driving motor to become a rotation axis of the hammer assembly, protruding in the direction of the open surface of the milling chamber so that the hollow of the hammer assembly is detachably fitted, and a thread formed on an outer circumference of the end thereof; And And a fastening ring coupled to a thread of the rotary shaft to fix the hammer assembly to the rotary shaft. According to claim 3, The hinge portion of the cover, And a pair of hinge pins spaced apart from each other but at least one of the hinge pins are detachably inserted therein.