Long flame coal roller kiln

Abstract

The utility model discloses a long flame coal roller kiln which comprises a mounting base and is characterized in that a roller kiln mechanism used for carbonizing long flame coal is arranged on the mounting base, the roller kiln mechanism comprises an opening and closing assembly, the opening and closing assembly comprises a roller kiln body arranged at the upper end of the mounting base, and a carbonization space is formed in the roller kiln body; the purification assembly comprises a dust box for filtering large-particle dust, and a desulfurization box main body and a denitration box main body which are used for purifying small-particle dust; dust is discharged after purification, so that the influence on the working environment in the carbonization process is avoided. Besides, due to the fact that the shapes and the heights of the long flame coals of different batches are different, if a feeding port is difficult to adjust flexibly, external cold air invades, an internal high-temperature environment is difficult to maintain, and then carbonization efficiency is affected, the height of the baffle is adjusted through the lifting assembly, so that the height of the feeding port is matched with the height of the long flame coals, and carbonization efficiency is improved. And the problem that cold air enters due to the fact that the feeding opening is too large is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to long flame coal carbonization technical field, concretely is a long flame coal roller kiln. BACKGROUND

[0002] In today's energy and industrial fields, coal resources have always occupied an important position. With the continuous progress of science and technology and the increasing diversification of industrial demand, efficient utilization and deep processing of coal have become a key issue. Long flame coal, as a member of the coal family, has broad application prospects due to its unique physical and chemical properties. In order to meet the requirements of different industries for the quality and performance of coal products, various coal processing technologies have emerged. Among them, carbonization technology, as one of the important means of converting coal into more valuable products, has received widespread attention. The roller kiln advancing carbonization system gradually stands out in the processing of long flame coal, which combines the advantages of continuous production and precise temperature control, providing a new way for efficient carbonization of long flame coal.

[0003] The traditional roller kiln for long flame coal carbonization often produces a large amount of dust during the carbonization process. If these dusts are not effectively treated, they can easily pollute the working environment. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a long flame coal roller kiln, which solves the problem that the traditional long flame coal often produces a large amount of dust during the carbonization process, which can easily pollute the working environment if not effectively treated.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a long flame coal roller kiln, comprising a mounting base, characterized in that: the mounting base is provided with a roller kiln mechanism for long flame coal carbonization, and the roller kiln mechanism comprises:

[0006] An opening and closing assembly comprises a roller kiln body provided on the upper end of the mounting base, the roller kiln body has a carbonization space inside, during carbonization, long flame coal is placed in the carbonization space, and the two sides of the roller kiln body are connected with baffles through lifting assemblies, the baffles are used to close or open the carbonization space;

[0007] The purification assembly comprises a dust box arranged above the roller kiln body, the dust box has a filtering space therein, the filtering space is communicated with the carbonization space, a filtering assembly is arranged in the filtering space, the filtering assembly is used for filtering large-particle dust generated in the carbonization process to form small-particle dust; a desulfurization box body is arranged on one side of the dust box, a denitration box body is arranged away from the desulfurization box body, an exhaust pipe is communicated with the denitration box body away from the desulfurization box body end, and the desulfurization box body and the denitration box body are used for purifying the small-particle dust and discharging the purified dust through the exhaust pipe.

[0008] Preferably, the roller kiln body comprises side plates arranged along the width direction of the mounting base, and a top plate arranged at the top end of the two side plates, and the top plate is provided with a sliding groove set at both ends along the length direction of the mounting base, and each sliding groove set comprises a sliding groove arranged at both ends of the top plate along the width direction of the mounting base; the lifting assembly comprises a fixed plate fixedly connected at the center of the lower end surface of the mounting base, and the upper end surface of the fixed plate is provided with a first hydraulic rod, and the upper end of the first hydraulic rod is fixedly connected with a connecting bracket, and both ends of the connecting bracket are fixedly connected with the baffle plates arranged on both sides of the roller kiln body, and each baffle plate is provided with a lifting block on the inner wall of both ends along the width direction of the mounting base, and the lifting block is located in the interior of the corresponding sliding groove and is in sliding connection.

[0009] Preferably, the right end of the roller kiln body is provided with a discharging assembly, the discharging assembly has a discharging space therein, when the right baffle plate is lifted, the discharging space and the carbonization space are communicated, the upper end of the discharging assembly is provided with a thermal imaging sensor for detecting temperature, and one side of the thermal imaging sensor is provided with a nitrogen machine body.

[0010] Preferably, the dust box and the roller kiln body are communicated through a three-way pipe, the upper end of the three-way pipe is communicated with the filtering space, and the lower end is provided with two dust suction ports, and the two dust suction ports are located in the interior of the carbonization space.

[0011] Preferably, the filtering space is provided with a filter screen support, the filter screen support is provided with a filter screen, and the large-particle dust in the carbonization space enters the desulfurization box body after passing through the filter screen.

[0012] Preferably, the inner wall of the filter assembly is provided with a mounting support, the mounting support comprises a vertical plate arranged vertically, and transverse plates arranged at both ends of the vertical plate, the two transverse plates are fixedly connected with the top cover and the bottom cover of the dust box respectively, a reciprocating screw rod is arranged between the two transverse plates, the two ends of the reciprocating screw rod are rotatably connected with the transverse plates respectively, a sliding block is sleeved on the reciprocating screw rod and is threadedly connected with the reciprocating screw rod, one end of the sliding block is slidably connected with the vertical plate in a vertical direction, and a cleaning assembly is arranged at the end of the sliding block away from the vertical plate.

[0013] Preferably, the cleaning assembly comprises positioning grooves arranged on the two side walls of the sliding block in the width direction of the mounting base, positioning blocks are slidably connected in the positioning grooves, and scrapers are fixedly connected to the two positioning blocks away from the mounting support; a damping support rod is fixedly connected to the end of the sliding block away from the mounting support, a damping spring is sleeved on the damping support rod, the damping spring abuts against the scraper away from the sliding block, a pair of rubber plates are fixedly connected to the outer wall of the scraper, and cleaning rods are uniformly distributed on the outer wall of the rubber plates.

[0014] Preferably, the inside of the mounting base is provided with a collecting support which can slide in the length direction of the mounting base, the collecting support is fixedly connected with a connecting plate away from the discharging assembly, the connecting plate is connected with the free end of a second hydraulic rod on the two sides in the width direction of the mounting base, and the fixed end of the second hydraulic rod is fixedly connected with the mounting base.

[0015] Beneficial effects

[0016] The utility model provides a long flame coal roller kiln, which has the following beneficial effects compared with the prior art:

[0017] The dust generated in the carbonization process enters the dust box and is filtered by the filter assembly in the dust box to form small particle dust, which is purified by the desulfurization box body and the denitration box body on one side of the dust box, and then discharged through the exhaust pipe, thereby avoiding the influence of dust on the working environment. In addition, the large particle dust is first filtered into small particle dust by the filter assembly, which avoids the influence of large particle dust on the subsequent equipment and ensures that the desulfurization and denitration processes are carried out in a relatively clean environment, thereby maintaining the stability and reliability of the system.

[0018] In addition, since different batches of long flame coal have different shapes and heights, it is difficult to flexibly adjust the feeding port, which may lead to the invasion of external cold air and the difficulty in maintaining the internal high-temperature environment, thereby affecting the carbonization efficiency. The height of the baffle is adjusted by the lifting assembly in the utility model, so that the height of the feeding port matches the height of the long flame coal, thereby avoiding the problem that the feeding port is too large to allow cold air to enter. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the main body of the roller kiln of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the dust box of this utility model;

[0022] Figure 4 This is a schematic diagram of the rear structure of the main body of the roller kiln of this utility model;

[0023] Figure 5 This is a schematic diagram of the main structure of the scraper of this utility model.

[0024] In the diagram: 1. Mounting base; 2. Roller kiln body; 201. Three-way conduit; 202. Dust box; 203. Desulfurization box body; 204. Denitrification box body; 205. Exhaust pipe; 3. Slide chute; 301. Lifting block; 302. Baffle; 4. Fixing plate; 401. First hydraulic rod; 402. Connecting bracket; 5. Dust suction port; 501. Collection bracket; 502. Connecting plate; 503. Fixing block; 504. Second hydraulic rod; 6. Discharge assembly; 601. Thermal imaging sensor; 602. Nitrogen generator body; 7. Top cover; 701. Mounting bracket; 702. Reciprocating screw; 703. Slider; 704. Scraper; 705. Filter screen bracket; 8. Positioning groove; 801. Positioning block; 802. Shock-absorbing spring; 803. Damping support rod; 804. Rubber plate; 805. Cleaning rod. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-5 This utility model provides a long-flame coal roller kiln, including a mounting base 1, on which a roller for pushing the long-flame coal is provided, and a roller kiln mechanism for the coalification of long-flame coal is provided on the mounting base 1. The roller kiln mechanism includes:

[0027] The opening and closing assembly comprises a roller kiln body 2 arranged on the upper end of the mounting base 1, the roller kiln body 2 has a carbonization space, during carbonization, long flame coal is placed in the carbonization space, and the two sides of the roller kiln body 2 are connected with baffle plates 302 through lifting assemblies, the baffle plates 302 are used for closing or opening the carbonization space.

[0028] The mounting base 1 comprises a bottom plate, the two sides of the bottom plate are provided with side plates, the roller comprises a plurality of rotating rollers, and the two ends of the rotating rollers are rotatably connected with the side plates. Before carbonization, the long flame coal is placed on the roller, and the long flame coal is pushed into the carbonization space for carbonization by rotating the rollers of the roller.

[0029] The purification assembly comprises a dust box 202 arranged above the roller kiln body 2, the dust box 202 has a filtering space, the filtering space is communicated with the carbonization space, the filtering space is provided with a filtering assembly, the filtering assembly is used for filtering large-particle dust generated in the carbonization process to form small-particle dust, one side of the dust box 202 is provided with a desulfurization box body 203, and a denitration box body is arranged on the side, away from the dust box 202, of the desulfurization box body 203, the denitration box body is communicated with an exhaust pipe 205 at the end, away from the desulfurization box body 203, of the denitration box body, and the desulfurization box body 203 and the denitration box body 204 are used for purifying small-particle dust and discharging the purified dust from the exhaust pipe 205.

[0030] The desulfurization process can adopt a plurality of technologies such as a reduction method, an adsorption method or a wet method, and the specific method depends on the actual situation and environmental protection requirements, the denitration process can also adopt a plurality of technologies such as selective catalytic reduction SCR and selective non-catalytic reduction SNCR, and the specific method needs to be selected according to the composition of flue gas and emission standards.

[0031] In conclusion, the dust generated in the carbonization process of the roller kiln enters the dust box 202, is filtered by the filtering assembly in the dust box 202, forms small particle dust, and is purified by the desulfurization box main body 203 and the denitration box main body 204 on one side of the dust box 202, and the purified dust is discharged from the exhaust pipe 205, thereby avoiding the influence of dust on the working environment; in addition, the large particle dust is first filtered into small particle dust by the filtering assembly, thereby avoiding the influence of the large particle dust on the subsequent equipment, ensuring that the desulfurization and denitration processes are carried out in a relatively clean environment, and being beneficial to maintaining the stability and reliability of the system. In addition, the height of the feeding port can be adjusted by the lifting assembly, so that the entry of external cold air and the escape of internal hot air are reduced, thereby effectively reducing the loss of internal temperature, maintaining the high-temperature environment in the roller kiln, and improving the energy utilization efficiency.

[0032] In the preferred embodiment, the roller kiln main body 2 comprises side plates arranged along the width direction of the mounting base 1, and a top plate arranged at the top end of the two side plates, and the top plate is provided with a plurality of slide grooves 3 at both ends along the length direction of the mounting base 1; the lifting assembly comprises a fixed plate 4 fixedly connected at the center of the lower end surface of the mounting base 1, and the upper end surface of the fixed plate 4 is provided with a first hydraulic rod 401, the upper end of the first hydraulic rod 401 is fixedly connected with a connecting bracket 402, and the two ends of the connecting bracket 402 are fixedly connected with the baffles 302 arranged on both sides of the roller kiln main body 2, and each baffle 302 is provided with a lifting block 301 on the inner wall of both ends along the width direction of the mounting base 1, and the lifting block 301 is located inside the corresponding slide groove 3 and is in sliding connection.

[0033] The bottom end of the two side plates is fixedly connected with the mounting base 1, and the carbonization space is formed between the two side plates and the top plate; one end of the fixed plate 4 is fixedly connected with the mounting base 1, and the other end extends outward and is connected with the fixed end of the first hydraulic rod 401, the free end of the first hydraulic rod 401 is connected with the connecting bracket 402, the extension direction of the connecting bracket 402 is the length direction of the mounting base 1, and the two baffles 302 can be lifted synchronously by the first hydraulic rod 401.

[0034] In the preferred embodiment, the right end of the roller kiln main body 2 is provided with a discharging assembly 6, the discharging assembly 6 has a discharging space inside, the discharging space and the carbonization space are communicated when the right baffle 302 is lifted, the upper end of the discharging assembly 6 is provided with a thermal imaging sensor 601 for detecting temperature, and one side of the thermal imaging sensor 601 is provided with a nitrogen machine main body 602.

[0035] Wherein, the material will be self-heating due to the reaction with oxygen in the air after coming out, if the temperature is below 40 degrees, it will not produce self-heating, if the detected temperature is higher than 40 degrees, the nitrogen gas machine main body 602 gas switching of the mixing kiln discharge channel needs to be switched to nitrogen to prevent self-heating, which helps to maintain the original quality of the material.

[0036] In the preferred embodiment, the dust box 202 and the roller kiln main body 2 are communicated through the tee conduit 201, the upper end of the tee conduit 201 is communicated with the filtering space, the lower end is provided with two dust suction ports 5, and the two dust suction ports 5 are located inside the carbonization space.

[0037] The dust suction port 5 is arranged to capture the dust generated in the carbonization process, and then enters the desulfurization box main body 203 and the denitration box main body 204, and the pollutant content is greatly reduced through the treatment of the desulfurization box main body 203 and the denitration box main body 204, and is discharged into the atmosphere through the exhaust pipe 205.

[0038] In the preferred embodiment, the filtering space is provided with a filter screen support 705, the filter screen support 705 is provided with a filter screen, and the large particle dust in the carbonization space enters the desulfurization box main body 203 through the filter screen.

[0039] In the preferred embodiment, the inner wall of the filtering assembly is provided with a mounting bracket 701, the mounting bracket 701 includes a vertical plate arranged vertically, and transverse plates arranged at both ends of the vertical plate, the two transverse plates are fixedly connected with the top cover 7 and the bottom cover of the dust box 202 respectively, a reciprocating screw rod 702 is arranged between the two transverse plates, the two ends of the reciprocating screw rod 702 are rotatably connected with the transverse plates, a sliding block 703 is arranged on the reciprocating screw rod 702 in a threaded connection mode, one end of the sliding block 703 is slidably connected with the vertical plate in a vertical direction, and a cleaning assembly is arranged at the end of the sliding block 703 away from the vertical plate.

[0040] The upper end of the reciprocating screw rod 702 penetrates the upper transverse plate and the top cover 7, and is connected with the motor arranged on the dust box 202, the reciprocating screw rod 702 is driven to rotate through the motor, the sliding block 703 is driven to move up and down through the rotation of the reciprocating screw rod 702, and the filter screen is cleaned up and down through the cleaning assembly, so that manual cleaning is avoided, and the cleaning efficiency is improved.

[0041] In the preferred embodiment, the cleaning assembly comprises positioning grooves 8 arranged on the two side walls of the sliding block 703 along the width direction of the mounting base 1, positioning blocks 801 are slidingly connected inside the positioning grooves 8, and two positioning blocks 801 are fixedly connected with scrapers 704 away from the mounting bracket 701; the sliding block 703 is fixedly connected with a damping support rod 803 away from the mounting bracket 701, the damping support rod 803 is sleeved with a damping spring 802, the damping spring 802 is in abutment with the scraper 704 away from the sliding block 703, and a pair of rubber plates 804 are fixedly connected to the outer wall of the scraper 704, and the outer wall of the rubber plate 804 is uniformly distributed with cleaning rods 805.

[0042] The pair of rubber plates 804 have an included angle therebetween, so that the cleaning rods 805 on each rubber plate 804 are in contact with the filter screen. When large-particle dust adheres to the filter screen, the size is different, and when the outer diameter is large, the scraper 704 moves away from the filter screen along the positioning groove 8, at this time the damping spring 802 is in a force storage state, and when the particle outer diameter is small, the damping spring 802 is in a force release state, driving the scraper 704 to move along the positioning groove 8 to approach the filter screen, so that the cleaning rods 805 are always in contact with the filter screen, thereby ensuring the cleaning effect.

[0043] In the preferred embodiment, the inside of the mounting base 1 is provided with a collecting bracket 501 which can slide along the length direction thereof, the collecting bracket 501 is fixedly connected with a connecting plate 502 away from the discharge assembly 6, the connecting plate 502 is connected with the free end of the second hydraulic rod 504 along the two sides of the width direction of the mounting base 1, and the fixed end of the second hydraulic rod 504 is fixedly connected with the mounting base 1.

[0044] The bottom plate and the side plate of the mounting base 1 form a mounting space, the collecting bracket 501 is arranged in the mounting space and is slidingly connected with the side plate, and the collecting bracket 501 is arranged below the roller way, the side plate of the mounting base 1 is provided with a fixed block 503, the fixed end of the second hydraulic rod 504 is fixedly connected with the fixed block 503, and the extension direction of the free end of the second hydraulic rod 504 is along the length direction of the mounting base 1.

[0045] In operation, the long flame coal is pushed to the front of the left baffle 302 through the roller way, and after the baffle 302 is lifted to an appropriate height by the lifting assembly, the long flame coal is pushed into the carbonization space, and then the baffle 302 is lowered by the lifting assembly to ensure the closure of the carbonization space. The dust generated during the carbonization process enters the dust box 202 through the three-way conduit 201, and then enters the inside of the desulfurization box body 203 and the denitration box body 204 after being filtered by the filter screen. The pollutant content is greatly reduced by the treatment of the desulfurization box body 203 and the denitration box body 204, and then discharged into the atmosphere through the exhaust pipe 205.

[0046] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0047] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A long flame coal roller kiln comprising a mounting base (1) on which a roller is provided for pushing the long flame coal, characterized in that: The installation base (1) is provided with a roller kiln mechanism for long flame coal carbonization, which comprises: The opening and closing assembly comprises a roller kiln body (2) arranged at the upper end of the installation base (1), the roller kiln body (2) has a carbonization space inside, during carbonization, the long flame coal is placed in the carbonization space, and the two sides of the roller kiln body (2) are connected with baffle plates (302) through lifting assemblies, the baffle plates (302) are used for closing or opening the carbonization space; The purification assembly comprises a dust box (202) arranged above the roller kiln body (2), the dust box (202) has a filtering space inside, the filtering space is communicated with the carbonization space, a filtering assembly is arranged in the filtering space, the filtering assembly is used for filtering large-particle dust generated in the carbonization process to form small-particle dust, one side of the dust box (202) is provided with a desulfurization box body (203), the desulfurization box body (203) is provided with a denitration box body (204) away from the one side of the dust box (202), the denitration box body (204) is communicated with an exhaust pipe (205) away from the end of the desulfurization box body (203), and the desulfurization box body (203) and the denitration box body (204) are used for purifying the small-particle dust and discharging the purified dust through the exhaust pipe (205).

2. A long flame coal roller kiln as claimed in claim 1, wherein: The roller kiln body (2) comprises side plates arranged along the width direction of the installation base (1) and a top plate arranged at the top end of the two side plates, the top plate is provided with groove (3) sets at the two ends along the length direction of the installation base (1), each groove (3) set comprises a groove (3) arranged at the two ends of the top plate along the width direction of the installation base (1), the lifting assembly comprises a fixed plate (4) fixedly connected at the center of the lower end surface of the installation base (1), the upper end surface of the fixed plate (4) is provided with a first hydraulic rod (401), the upper end of the first hydraulic rod (401) is fixedly connected with a connecting bracket (402), the two ends of the connecting bracket (402) are fixedly connected with the baffle plates (302) arranged at the two sides of the roller kiln body (2) respectively, and each baffle plate (302) is provided with a lifting block (301) at the inner wall of the two ends along the width direction of the installation base (1), the lifting block (301) is located inside the corresponding groove (3) and is in sliding connection.

3. A long flame coal roller kiln as claimed in claim 1, wherein: The right end of the roller kiln body (2) is provided with a discharging assembly (6), the discharging assembly (6) has a discharging space inside, when the right baffle plate (302) is lifted, the discharging space and the carbonization space are communicated, the upper end of the discharging assembly (6) is provided with a thermal imaging sensor (601) for detecting temperature, and one side of the thermal imaging sensor (601) is provided with a nitrogen machine body (602).

4. A long flame coal roller kiln as claimed in claim 1, wherein: The dust box (202) and the roller kiln body (2) are communicated through a three-way pipe (201), the upper end of the three-way pipe (201) is communicated with the filtering space, the lower end is provided with two dust suction ports (5), and the two dust suction ports (5) are located inside the carbonization space.

5. A long flame coal roller kiln as claimed in claim 1, wherein: The filter space is provided with a filter screen support (705), and a filter screen is arranged on the filter screen support (705).

6. A long flame coal roller kiln as claimed in claim 1, wherein: The inner wall of the filter assembly is provided with a mounting support (701), the mounting support (701) comprises a vertical plate arranged vertically, and transverse plates arranged at both ends of the vertical plate, the two transverse plates are fixedly connected with a top cover (7) and a bottom cover of the dust box (202) respectively, a reciprocating screw rod (702) is arranged between the two transverse plates, both ends of the reciprocating screw rod (702) are rotatably connected with the transverse plates, a sliding block (703) is arranged on the reciprocating screw rod (702) in a threaded connection mode, one end of the sliding block (703) is slidably connected with the vertical plate in a vertical direction, and a cleaning assembly is arranged at an end of the sliding block (703) away from the vertical plate, when the reciprocating screw rod (702) rotates to drive the sliding block (703) to move vertically, the cleaning assembly cleans the filter screen.

7. A long flame coal roller kiln as claimed in claim 6, wherein: The cleaning assembly comprises positioning grooves (8) arranged on two side walls of the sliding block (703) in the width direction of the mounting base (1), positioning blocks (801) are slidably connected in the positioning grooves (8), and scrapers (704) are fixedly connected to two ends of the positioning blocks (801) away from the mounting support (701); a damping support rod (803) is fixedly connected to an end of the sliding block (703) away from the mounting support (701), a damping spring (802) is arranged on the damping support rod (803) in a sleeving mode, the damping spring (802) is in abutment with the scraper (704) at an end away from the sliding block (703), and a pair of rubber plates (804) are fixedly connected to the outer wall of the scraper (704), and cleaning rods (805) are uniformly distributed on the outer wall of the rubber plates (804).

8. A long flame coal roller kiln as claimed in claim 1, wherein: The mounting base (1) is internally provided with a collecting support (501) which can slide in the length direction of the mounting base (1), the collecting support (501) is fixedly connected with a connecting plate (502) away from the discharging assembly (6), the connecting plate (502) is connected with the free end of a second hydraulic rod (504) in the width direction of the mounting base (1), a fixed block (503) is arranged on the outer wall of the side plate of the mounting base (1), and the fixed end of the second hydraulic rod (504) is fixedly connected with the fixed block (503) arranged on the outer wall of the side plate of the mounting base (1).

Images