A dust removal structure for a lime milk ball mill

Abstract

The utility model discloses a dust removal structure for preparing lime milk ball mill, including ball mill discharge port, and the top of discharge port is equipped with the air storage component of fixed plate, telescopic air bag, fan, spring and sliding plate, and the discharge port is connected with the feeding channel, and the top of channel is equipped with the dust absorption component of inclined plate, dust collecting port and spring steel sheet, and the dust absorption component is connected with dust removal cavity, and the knocking cleaning component in the cavity is hung by fixed rope, moving piece, spring and knock vibration ball, and the switch valve component containing electromagnetic coil, valve plug and fourth spring is assembled to the top of dust removal cavity.

Description

Technical Field

[0001] This utility model relates to dust removal technology for ball mills, specifically a dust removal structure for a ball mill used in the preparation of lime slurry. Background Technology

[0002] During the production of lime slurry, the ball mill generates a large amount of lime dust when grinding the lime raw materials. Lime dust is alkaline; inhalation can irritate the respiratory mucosa, causing symptoms such as coughing and wheezing. Long-term exposure can also lead to more serious lung diseases, such as pneumoconiosis. Installing a dust collection system can promptly capture and remove this dust, greatly reducing the dust concentration in the work environment and protecting operators from dust hazards. Excessive dust in the workshop reduces visibility, interferes with operators' observation and monitoring of equipment operation, and increases the risk of misoperation. Moreover, dust accumulation on electrical equipment and transmission components can cause electrical faults, accelerate the wear and tear of mechanical parts, affect normal equipment operation, lead to increased downtime for maintenance, and reduce production efficiency. Effective dust collection systems create a clean production environment, ensuring stable and continuous production activities.

[0003] Chinese patent CN206701478U discloses a dust removal system for a lime ball mill, comprising a ball mill, a lime conveyor, a bag filter, and a fan. It also includes a settling device and a closed-loop device. The settling device is installed between the ball mill and the bag filter, and the closed-loop device is installed at the bottom of the settling device. The outlet of the closed-loop device is connected to the inlet of the lime conveyor. A heating device is installed on the outer side wall of the settling device, and a baffle plate is installed inside the settling device. This dust removal system is suitable for dust removal when lime with high moisture content is ground using a ball mill. Most of the dust-laden air settles in the settling device. Furthermore, the heating device heats the dust-laden air, increasing its dryness and reducing the adhesion of lime dust to the filter bags of the bag filter, thus increasing the stability of the bag filter operation and improving production efficiency.

[0004] The aforementioned dust removal mechanism for lime ball mills has several drawbacks. It occupies a large space, which can affect the layout of other machinery in the production workshop and increase the workshop construction cost. Furthermore, the heating method used to prevent lime from adhering is problematic because the reaction between lime and water itself generates heat, and continued heating can lead to heat accumulation, posing a certain danger. The absorbed lime dust is stored inside the dust removal mechanism, requiring regular cleaning, which increases the maintenance process and can also lead to lime waste.

[0005] To address the aforementioned issues, a dust removal structure for preparing lime slurry ball mills is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a dust removal structure for a ball mill used in the preparation of lime slurry, so as to solve the problems of existing dust removal mechanisms occupying a large space and affecting the workshop layout; the safety hazards of using heating to prevent adhesion; and the need for regular cleaning of collected dust, which increases the maintenance process and causes material waste.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a dust removal structure for a ball mill used in the preparation of lime slurry, comprising a ball mill discharge port, an air storage component installed on the top of the ball mill discharge port, the air storage component comprising a fixed plate, the fixed plate being fixedly connected to the top of the ball mill discharge port, a telescopic airbag being fixedly connected to the side of the fixed plate, and a sliding plate being fixedly connected to the end of the telescopic airbag away from the fixed plate, a fan being fixedly connected to the outer wall of the ball mill discharge port, and the output end of the fan being connected to the telescopic airbag, and a first spring being nested inside the telescopic airbag, and the two ends of the first spring being fixedly connected to the telescopic airbag.

[0008] Preferably, a feeding channel is fixedly connected to the end of the ball mill discharge port. A dust collection component is installed on the top of the feeding channel. A dust removal chamber is provided on the top of the dust collection component, and the dust removal chamber is fixedly connected to the feeding channel. A knocking and cleaning component is suspended inside the dust removal chamber. The knocking and cleaning component includes a fixing rope, and the top end of the fixing rope is fixedly connected to the dust removal chamber. A moving plate is fixedly connected to the side of the fixing rope. A third spring is fixedly connected to the bottom end of the fixing rope, and a striking vibration ball is fixedly connected to the bottom end of the third spring.

[0009] Preferably, a switching valve assembly is installed at the top of the dust removal chamber, and the switching valve assembly is used to control the inflow airflow into the dust removal chamber.

[0010] Preferably, a limiting slider is fixedly connected to the top of the sliding plate, and a guide rod passes through the inside of the limiting slider, and the limiting slider and the guide rod are slidably connected.

[0011] Preferably, one end of the guide slide rod is fixedly connected to the fixed plate, and the end of the guide slide rod away from the fixed plate is fixedly connected to the fixed block. A second spring is nested outside the guide slide rod, one end of the second spring is fixedly connected to the limiting slider, and the other end of the second spring is fixedly connected to the fixed block.

[0012] Preferably, the fixing rope is symmetrically provided with connecting rods about the vertical central axis of the moving plate, the moving plate and the dust removal chamber are in clearance fit, and the side of the moving plate near the switching valve assembly is streamlined.

[0013] Preferably, the switching valve assembly includes an air inlet cylinder that extends through the interior of the fixed plate and is connected to the telescopic airbag.

[0014] Preferably, the end of the air intake cylinder furthest from the telescopic airbag is fixedly connected to an air intake port, which is connected to the dust removal chamber. The size of the air intake port gradually decreases from the end closer to the air intake cylinder to the end closer to the dust removal chamber.

[0015] Preferably, a support rod is fixedly connected inside the air intake cylinder, an electromagnetic coil is fixedly connected to the side of the support rod, a fourth spring is nested outside the electromagnetic coil, one end of the fourth spring is fixedly connected to the support rod, and a valve plug is fixedly connected to the other end of the fourth spring. A magnetic block is fixedly connected to the side of the valve plug near the electromagnetic coil, a valve seat is nested outside the valve plug, and the valve seat is fixedly connected inside the air intake cylinder.

[0016] Preferably, the dust collection component includes an inclined plate, and the inclined plate is fixedly connected to the material feeding channel, and dust collection ports are evenly distributed inside the inclined plate.

[0017] Preferably, a spring steel sheet is fixedly connected to one side of the dust collection port, and a guide plate is fixedly connected to the side of the spring steel sheet.

[0018] Preferably, a second triangular limiting block is fixedly connected to the end of the guide plate, and a first triangular limiting block is fixedly connected to the side of the dust collection port away from the spring steel sheet.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. The dust removal structure provided by this utility model for a ball mill used in the preparation of lime slurry can be directly installed at the discharge port of the lime ball mill. It can capture the dust raised in the first instance and curb the spread of dust from the source. It does not require long-distance ventilation ducts to transport dust-laden airflow, reducing losses such as incomplete dust settling and leakage during transportation, greatly improving dust collection efficiency, ensuring the real-time air quality in the workshop, and does not occupy too much valuable factory space. It does not require a large area for equipment placement, making the workshop layout more compact and reasonable.

[0021] 2. The dust removal structure provided by this utility model for a ball mill used in the preparation of lime slurry can instantly destroy the adsorption force formed between lime dust and the inner wall by striking it. This can quickly remove the firmly attached large dust particles and turn them back into dispersed particles that are easily carried away by the subsequent airflow. This efficiently restores the normal operation of the dust removal equipment and does not involve dangerous factors such as high temperature and high pressure. There is almost no risk of causing serious safety accidents such as fire or explosion, and the working environment is relatively safe and stable. Attached Figure Description

[0022] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0023] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0024] Figure 3 This is a cross-sectional structural diagram of the gas storage component of this utility model.

[0025] Figure 4 This is a cross-sectional structural diagram of the switching valve assembly of this utility model.

[0026] Figure 5 This is a three-dimensional structural diagram of the tapping and cleaning component of this utility model.

[0027] Figure 6 This is a three-dimensional structural diagram of the dust collection component of this utility model.

[0028] Figure 7 This is a cross-sectional structural diagram of the dust collection port portion of this utility model.

[0029] In the diagram: 1. Ball mill discharge port; 2. Air storage assembly; 3. Feeding channel; 4. Dust collection assembly; 5. Tapping and cleaning assembly; 6. Switch valve assembly; 7. Dust removal chamber; 201. Fixed plate; 202. Telescopic airbag; 203. First spring; 204. Fan; 205. Sliding plate; 206. Limiting slider; 207. Guide slide rod; 208. Second spring; 209. Fixed block; 401. Inclined plate; 402. Collection... Dust inlet; 403, spring steel sheet; 404, guide plate; 405, first triangular limit block; 406, second triangular limit block; 501, fixing rope; 502, moving plate; 503, third spring; 504, striking vibration ball; 601, air inlet cylinder; 602, support rod; 603, electromagnetic coil; 604, fourth spring; 605, valve plug; 606, magnetic block; 607, valve seat; 608, air inlet port. Detailed Implementation

[0030] 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.

[0031] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0032] Please see Figures 1 to 7This utility model discloses a dust removal structure for a ball mill used in the preparation of lime slurry. It includes a ball mill discharge port 1, with an air storage assembly 2 installed on the top of the discharge port 1. The air storage assembly 2 includes a fixed plate 201, which is fixedly connected to the top of the discharge port 1. A telescopic airbag 202 is fixedly connected to the side of the fixed plate 201, and a sliding plate 205 is fixedly connected to the end of the telescopic airbag 202 away from the fixed plate 201. A fan 204 is fixedly connected to the outer wall of the discharge port 1, and the output end of the fan 204 is connected to the telescopic airbag 202. A first spring 203 is nested inside the telescopic airbag 202. Both ends of 03 are fixedly connected to the telescopic airbag 202. The top of the sliding plate 205 is fixedly connected to the limiting slider 206, and the limiting slider 206 has a guide slide rod 207 passing through it. The limiting slider 206 and the guide slide rod 207 are slidably connected. One end of the guide slide rod 207 is fixedly connected to the fixed plate 201, and the end of the guide slide rod 207 away from the fixed plate 201 is fixedly connected to the fixing block 209. The outside of the guide slide rod 207 is nested with a second spring 208. One end of the second spring 208 is fixedly connected to the limiting slider 206, and the other end of the second spring 208 is fixedly connected to the fixing block 209.

[0033] The fan 204 is always in operation. Its outlet is connected to the telescopic airbag 202 via a flexible air supply hose, supplying gas to the inside of the telescopic airbag 202. As the gas inside the telescopic airbag 202 gradually increases, the volume of the telescopic airbag 202 increases, and its end moves outward against the sliding plate 205, simultaneously stretching the first spring 203 and compressing the second spring 208. The airflow is stored inside the telescopic airbag 202. When the telescopic airbag 202 is full, the switch valve assembly 6 opens, and the first spring 203... Under the action of the second spring 208, the sliding plate 205 quickly moves closer to the fixed plate 201, thereby compressing the telescopic airbag 202. The gas stored inside the telescopic airbag 202 is quickly blown out into the dust removal chamber 7 through the air inlet 601. After accumulating the airflow, it is suddenly released. The sudden airflow has strong instantaneous kinetic energy, which can instantly impact the dust and easily destroy the adsorption force between the dust and the wall, thereby enhancing the cleaning effect on the dust inside the dust removal chamber 7. At the same time, it can also provide instantaneous kinetic energy for the upward movement of the moving plate 502.

[0034] A feeding channel 3 is fixedly connected to the end of the ball mill discharge port 1. A dust collection component 4 is installed on the top of the feeding channel 3. A dust removal chamber 7 is provided on the top of the dust collection component 4. The dust removal chamber 7 is fixedly connected to the feeding channel 3. A knocking and cleaning component 5 is suspended inside the dust removal chamber 7. The knocking and cleaning component 5 includes a fixing rope 501. The top end of the fixing rope 501 is fixedly connected to the dust removal chamber 7. A moving plate 502 is fixedly connected to the side of the fixing rope 501. A third spring 503 is fixedly connected to the bottom end of the fixing rope 501. A striking vibration ball 504 is fixedly connected to the bottom end of the third spring 503. A connecting rod is symmetrically arranged on the fixing rope 501 about the vertical central axis of the moving plate 502. The moving plate 502 and the dust removal chamber 7 are in clearance fit. The side of the moving plate 502 near the switch valve component 6 is streamlined.

[0035] When the moving plate 502 is suddenly blown by the airflow, it can be blown upward and rotated, so that it is pressed tightly against the upper wall of the dust removal chamber 7. At the same time, the streamlined moving plate 502 will not generate too much resistance to the airflow. When the switch valve assembly 6 is closed, the moving plate 502 loses the effect of the airflow, and the vibrating ball 504 moves downward under the action of gravity and hits the inclined plate 401. The impact force knocks on the inclined plate 401, thereby causing the lime dust adhering to the inclined plate 401 to fall off.

[0036] A switching valve assembly 6 is installed at the top of the dust removal chamber 7. The switching valve assembly 6 is used to control the inflow airflow into the dust removal chamber 7. The switching valve assembly 6 includes an air inlet cylinder 601, which penetrates the interior of the fixed plate 201 and is connected to the telescopic airbag 202. An air inlet port 608 is fixedly connected to the end of the air inlet cylinder 601 away from the telescopic airbag 202. The air inlet port 608 is connected to the dust removal chamber 7, and the size of the air inlet port 608 gradually decreases from the end closer to the air inlet cylinder 601 to the end closer to the dust removal chamber 7. The air intake cylinder 601 is small. A support rod 602 is fixedly connected inside the air intake cylinder 601. An electromagnetic coil 603 is fixedly connected to the side of the support rod 602. A fourth spring 604 is nested outside the electromagnetic coil 603. One end of the fourth spring 604 is fixedly connected to the support rod 602, and the other end of the fourth spring 604 is fixedly connected to a valve plug 605. A magnetic block 606 is fixedly connected to the side of the valve plug 605 near the electromagnetic coil 603. A valve seat 607 is nested outside the valve plug 605, and the valve seat 607 is fixedly connected inside the air intake cylinder 601.

[0037] When the electromagnetic coil 603 is energized, the electromagnetic coil 603 and the magnetic block 606 attract each other, which in turn moves the valve plug 605 outward, causing it to detach from the valve seat 607. The valve is in the open state, allowing the gas inside the telescopic airbag 202 to flow into the dust removal chamber 7 through the air inlet 601. The gradually decreasing air inlet port 608 has a contracting effect on the flowing air, thereby gradually increasing the airflow velocity and impact force. When the electromagnetic coil 603 is not energized, under the action of the fourth spring 604 and the pushing action of the airflow, the valve plug 605 is inserted into the valve seat 607, sealing it. The gas inside the telescopic airbag 202 cannot flow out and accumulates inside.

[0038] The dust collection assembly 4 includes an inclined plate 401, which is fixedly connected to the feeding channel 3. Dust collection ports 402 are evenly distributed inside the inclined plate 401. A spring steel sheet 403 is fixedly connected to one side of the dust collection port 402, and a guide plate 404 is fixedly connected to the side of the spring steel sheet 403. A second triangular limiting block 406 is fixedly connected to the end of the guide plate 404. A first triangular limiting block 405 is fixedly connected to the side of the dust collection port 402 away from the spring steel sheet 403. Under the action of the airflow, the guide plate 404 tilts upward. When the airflow blows, it can guide the airflow and prevent the airflow from entering the inner cavity of the feeding channel 3. When it is hit by the impact vibrating ball 504, the guide plate 404 can rotate downward under the action of the spring steel plate 403. It is not a rigid connection, which can effectively avoid damage caused by impact. The second triangular limit block 406 and the first triangular limit block 405 cooperate with each other to play a limiting role, so that the guide plate 404 will not bend inward into the interior of the feeding channel 3.

[0039] When lime material flows from the ball mill discharge port 1 and through the feeding channel 3 to the subsequent storage hopper, the dust raised will enter the inner cavity of the dust removal chamber 7 through the dust collection port 402 for collection. When the airflow blows, the lime dust collected inside the dust removal chamber 7 can enter the storage hopper through the bottom of the dust removal chamber 7 and mix with the previous material. There is no need for personnel to clean the dust removal mechanism regularly, which simplifies the maintenance process, and the lime dust collected in the dust removal mechanism will not be wasted.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] 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 dust removal structure for a ball mill used in the preparation of lime slurry, characterized in that: The ball mill discharge port (1) is provided with a gas storage assembly (2) installed on the top of the ball mill discharge port (1). The gas storage assembly (2) includes a fixed plate (201) and the fixed plate (201) is fixedly connected to the top of the ball mill discharge port (1). A telescopic airbag (202) is fixedly connected to the side of the fixed plate (201), and a sliding plate (205) is fixedly connected to the end of the telescopic airbag (202) away from the fixed plate (201). A fan (204) is fixedly connected to the outer wall of the ball mill discharge port (1), and the output end of the fan (204) is connected to the telescopic airbag (202). A first spring (203) is nested inside the telescopic airbag (202), and the two ends of the first spring (203) are fixedly connected to the telescopic airbag (202). The end of the ball mill discharge port (1) is fixedly connected to a feeding channel (3). A dust collection component (4) is installed on the top of the feeding channel (3). A dust removal chamber (7) is provided on the top of the dust collection component (4). The dust removal chamber (7) is fixedly connected to the feeding channel (3). A knocking and cleaning component (5) is suspended inside the dust removal chamber (7). The knocking and cleaning component (5) includes a fixing rope (501). The top end of the fixing rope (501) is fixedly connected to the dust removal chamber (7). A moving plate (502) is fixedly connected to the side of the fixing rope (501). A third spring (503) is fixedly connected to the bottom end of the fixing rope (501). A striking vibration ball (504) is fixedly connected to the bottom end of the third spring (503). A switching valve assembly (6) is installed at the top of the dust removal chamber (7), which is used to control the inflow airflow into the dust removal chamber (7).

2. The dust removal structure for a ball mill used in the preparation of lime slurry according to claim 1, characterized in that: The top of the sliding plate (205) is fixedly connected to a limiting slider (206), and a guide rod (207) runs through the inside of the limiting slider (206), and the limiting slider (206) and the guide rod (207) are slidably connected.

3. The dust removal structure for a ball mill used in the preparation of lime slurry according to claim 2, characterized in that: One end of the guide slide rod (207) is fixedly connected to the fixed plate (201), and the end of the guide slide rod (207) away from the fixed plate (201) is fixedly connected to the fixed block (209). A second spring (208) is nested outside the guide slide rod (207). One end of the second spring (208) is fixedly connected to the limiting slider (206), and the other end of the second spring (208) is fixedly connected to the fixed block (209).

4. The dust removal structure for a ball mill used in the preparation of lime slurry according to claim 1, characterized in that: The fixed rope (501) is symmetrically provided with connecting rods about the vertical central axis of the moving plate (502). The moving plate (502) and the dust removal chamber (7) are in clearance fit. The side of the moving plate (502) near the switch valve assembly (6) is designed to be streamlined.

5. The dust removal structure for a ball mill used in the preparation of lime slurry according to claim 1, characterized in that: The switching valve assembly (6) includes an air inlet cylinder (601) that extends through the interior of the fixed plate (201) and is connected to the telescopic airbag (202).

6. The dust removal structure for a ball mill used in the preparation of lime slurry according to claim 5, characterized in that: An air inlet port (608) is fixedly connected to the end of the air inlet cylinder (601) away from the telescopic air bag (202). The air inlet port (608) is connected to the dust removal chamber (7). The size of the air inlet port (608) gradually decreases from the end closer to the air inlet cylinder (601) to the end closer to the dust removal chamber (7).

7. A dust removal structure for a ball mill used in the preparation of lime slurry according to claim 6, characterized in that: A support rod (602) is fixedly connected inside the air intake cylinder (601). An electromagnetic coil (603) is fixedly connected to the side of the support rod (602). A fourth spring (604) is nested outside the electromagnetic coil (603). One end of the fourth spring (604) is fixedly connected to the support rod (602), and the other end of the fourth spring (604) is fixedly connected to a valve plug (605). A magnetic block (606) is fixedly connected to the side of the valve plug (605) near the electromagnetic coil (603). A valve seat (607) is nested outside the valve plug (605), and the valve seat (607) is fixedly connected inside the air intake cylinder (601).

8. The dust removal structure for a ball mill used in the preparation of lime slurry according to claim 1, characterized in that: The dust collection component (4) includes an inclined plate (401), and the inclined plate (401) is fixedly connected to the feeding channel (3). The inclined plate (401) has dust collection ports (402) evenly distributed inside.

9. A dust removal structure for a ball mill used in the preparation of lime slurry according to claim 8, characterized in that: A spring steel sheet (403) is fixedly connected to one side of the dust collection port (402), and a guide plate (404) is fixedly connected to the side of the spring steel sheet (403).

10. A dust removal structure for a ball mill used in the preparation of lime slurry according to claim 9, characterized in that: The end of the guide plate (404) is fixedly connected to a second triangular limiting block (406), and the side of the dust collection port (402) away from the spring steel plate (403) is fixedly connected to a first triangular limiting block (405).

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