Dust removal system for edge runner mill

Abstract

The utility model relates to the field of tools for fly ash treatment, in particular to an edge runner for fly ash treatment, in particular to a dust removal system for the edge runner, which comprises an edge runner barrel, a barrel cover and a bag-type dust collector, the barrel cover is additionally arranged on the barrel to seal the edge runner barrel to form an inner cavity of the edge runner, and the bag-type dust collector is arranged in the inner cavity of the edge runner. The cylinder cover is provided with an observation window, the center of the cylinder cover is provided with a dust remover exhaust inlet, and the edge of the cylinder cover is also provided with a dust discharge port; and the bag-type dust collector is arranged above the cylindrical cover, the bag-type dust collector is of a container-shaped structure with a cavity, and an air inlet is formed in one side of the bag-type dust collector.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wheel mill technical field, especially a dust removal system for wheel mill. BACKGROUND

[0002] Wheel mill is a kind of material mixing equipment, in the process of material mixing, the millstone carries out rolling, rubbing to material, especially suitable for the mixing of difficult to fuse material, especially the mixing of wet mud and dry powder, wheel mill is composed of bottom plate and barrel to form the container of mixed material, and the barrel cover is covered on the barrel to realize dustproof sealing of wheel mill.But generally, the feeding port on the barrel of wheel mill is connected to feeding equipment such as feeder and belt conveyor, the feeding port is open and cannot be sealed, and the opening is large, when mixing dry powder material, the material powder is blown out of the wheel mill through the feeding port, causing dust pollution; especially when rolling some hazardous waste materials, the hazardous waste powder is blown out of the wheel mill through the feeding port of wheel mill, causing environmental pollution. SUMMARY

[0003] The utility model discloses a kind of composite dust removal systems for wheel mill, can effectively solve the problem of dust sealing in semi-sealed container.

[0004] The technical scheme of the utility model is implemented as follows: a dust removal system for wheel mill, including wheel mill barrel, barrel cover and bag filter, the barrel cover is added on the barrel, closes wheel mill barrel, forms wheel mill inner chamber, the barrel cover is equipped with observation window, dust collector suction port is set in the center of barrel cover, and dust discharging port is further provided at the edge of barrel cover;The bag filter is installed above the barrel cover, the bag filter is container-like structure with cavity, one side of which has air inlet, the other side has air outlet, and the lower end has dust outlet, which is communicated with the dust discharging port of barrel cover, and a gate is provided on the communication path;The air outlet of bag filter is connected to induced draft fan, and the air inlet of bag filter is connected to dust collector suction port through barrel cover suction pipe.

[0005] Main feeding port is formed on the barrel of wheel mill or barrel cover, which leads to wheel mill inner chamber, and feeding table is installed on the lower edge of main feeding port.

[0006] Further, air curtain is installed on the upper side of main feeding port.

[0007] Further, the air curtain is a box made of steel plate, which is welded and installed on the upper side of main feeding port, the upper half of the air curtain box is an empty air chamber, the lower half is contracted obliquely through inclined plate to form air blowing port, and the air curtain box is fixedly installed on the upper side of main feeding port through support plates on both sides;Air curtain fan is installed at one end of air curtain, and the air outlet pipe of air curtain fan extends into the air chamber box.

[0008] Furthermore, the main feeding port is divided into multiple secondary feeding ports, which are separated by partitions, and each feeding platform is equipped with a separate air curtain.

[0009] The beneficial effects of this utility model are: such a dust removal system for a roller mill plays the role of removing dust from the cylinder through a bag filter when the roller mill is working, preventing dust from drifting out of the cylinder through the feed port and causing air pollution. Attached Figure Description

[0010] Figure 1 Diagram of the dust removal system for a roller mill.

[0011] Figure 2 for Figure 1 Enlarged view of point A.

[0012] Figure 3 This is a front view of the feed inlet of the roller mill.

[0013] Figure 4 for Figure 1 Side view of the 13-section wind curtain.

[0014] Figure 5 for Figure 1 BB cross-section of Zhongfeng Curtain 13.

[0015] Figure 6 A schematic diagram showing the main feed inlet divided into multiple zones.

[0016] Among them: 1. Roller mill cylinder; 2. Cylinder cover; 3. Bag filter; 4. Dust collector suction port.

[0017] 5. Dust discharge port; 6. Air inlet; 7. Air outlet; 8. Dust outlet; 9. Baffle plate; 10. Exhaust fan.

[0018] 11. Duct exhaust pipe; 12. Main feed port; 13. Air curtain; 14. Air chamber; 15. Inclined plate; 16. Air outlet.

[0019] 17. Support plate; 18. Air curtain fan; 19. Feeding platform; 20. Secondary feeding port. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the embodiments.

[0021] like Figure 1 , 2As shown in Figure 3, a dust removal system for a roller mill includes a roller mill cylinder 1, a cylinder cover 2, and a bag filter 3. The cylinder cover 2 is installed on the cylinder, sealing the roller mill cylinder and forming the inner cavity of the roller mill. The cylinder cover is provided with an observation window for observing the material mixing. The cylinder cover is also provided with a manual feeding port for adding small amounts of additive materials. The manual feeding port is briefly opened when feeding and closed when not feeding. A dust collector suction port 4 is located at the center of the cylinder cover, and a dust discharge port 5 is located at the edge of the cylinder cover. The bag filter 3... 3. Installed above the shroud, the bag filter is a container-shaped structure with a cavity. It has an air inlet 6 on one side and an air outlet 7 on the other side. Its lower end has a dust outlet 8, which is connected to the dust discharge port of the shroud. A gate 9 is provided on the connection path. (In this embodiment, the dust outlet of the bag filter and the dust discharge port of the shroud are connected by a pipe, and the gate is provided on the pipe.) The air outlet 7 of the bag filter is connected to the induced draft fan 10, and the air inlet 6 of the bag filter is connected to the dust collector suction port 4 through the shroud exhaust pipe 11.

[0022] A main feed port 12 is provided on the cylinder or cover of the roller mill. The main feed port leads to the inner cavity of the roller mill. A feed platform 19 is installed on the lower edge of the main feed port.

[0023] Specific implementation method: The dust removal system of this roller mill is used as follows: First, the inner cavity of the roller mill is fed through the main feeding port, and a small amount of additive materials are added through the manual feeding port. The roller mill is equipped with a roller milling device. When the roller milling device is working, it crushes the material. After the mixing begins, the blower 10 draws air through the bag dust collector 3 and the cylinder exhaust pipe 11, forming a negative pressure in the inner cavity of the roller mill. The dust is drawn into the dust collector and will not drift out from some gaps, holes and feeding ports in the inner cavity of the roller mill. When the material in the roller mill has been mixed and there is basically no more dust, the gate 9 is opened. The dust collected in the bag dust collector falls into the roller mill along the inner wall of the cylinder 2 and is remixed into the material, so as to ensure that the small amount of additives that drift into the dust will not be lost and to ensure that the formula composition remains unchanged.

[0024] To elaborate further, such as Figure 3 , 4 As shown in Figure 5, an air curtain 13 is installed on the upper side of the main feed port 12.

[0025] Furthermore, the air curtain is a box made of steel plate, which is welded and installed on the upper side of the main feeding port. The upper half of the air curtain box is an empty air chamber 14, and the lower half is obliquely contracted by the inclined plate 15 to form an air outlet 16. The two sides of the air curtain box are fixedly installed on the upper side of the main feeding port by the support plate 17. An air curtain fan 18 is installed at one end of the air curtain, and the air outlet pipe of the air curtain fan extends into the air chamber box.

[0026] An air curtain is set up. When dust removal is performed, the air curtain fan 18 is turned on and blows air into the air chamber. The air in the air chamber is blown out through the air outlet 16 under the air curtain fan. After being contracted by the inclined plate 15, it forms a high-pressure airflow that is sprayed downwards, blowing the dust floating out of the open main feed port back into the roller mill cylinder, forming an air curtain seal against the dust and further avoiding dust pollution.

[0027] To elaborate further, such as Figure 6 As shown, the main feeding port 12 is divided into multiple secondary feeding ports 20, and the different feeding ports are separated by partitions. Each feeding platform is equipped with a separate air curtain.

[0028] This allows for the addition of different types of materials through different feeding ports, with one feeding port for each material, to meet various needs. A feeding platform is also provided for installing the feeding equipment.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A dust removal system for a roller mill, comprising a roller mill cylinder, a hood, and a bag filter, wherein the hood is mounted on the cylinder, sealing the roller mill cylinder to form an inner cavity of the roller mill, the hood having an observation window, a dust collector suction port at the center of the hood, and a dust discharge port at the edge of the hood; the bag filter is mounted above the hood, the bag filter being a container-shaped structure with a cavity, having an air inlet on one side, an air outlet on the other side, and a dust outlet at its lower end, which is connected to the dust discharge port of the hood, and a gate is provided in the connecting path; the air outlet of the bag filter is connected to an induced draft fan, and the air inlet of the bag filter is connected to the dust collector suction port through a hood exhaust pipe; a main feed port is provided on the roller mill cylinder or hood, the main feed port leading to the inner cavity of the roller mill, and a feed platform is installed at the lower edge of the main feed port.

2. The dust removal system for a roller mill according to claim 1, characterized in that: An air curtain is installed on the upper side of the main feed port.

3. The dust removal system for a roller mill according to claim 2, characterized in that: The air curtain is a box made of steel plate. The air curtain is welded and installed on the upper side of the main feeding port. The upper half of the air curtain box is an empty air chamber, and the lower half is formed by the oblique contraction of the inclined plate to form an air outlet. The two sides of the air curtain box are fixedly installed on the upper side of the main feeding port by the support plates. An air curtain fan is installed at one end of the air curtain, and the air outlet pipe of the air curtain fan extends into the air chamber box.

4. The dust removal system for a roller mill according to claim 2 or 3, characterized in that: The main feeding port is divided into multiple secondary feeding ports, which are separated by partitions. Each feeding platform is equipped with a separate air curtain.

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