A dust removal device for superfine slag powder processing

Abstract

The application relates to the technical field of comprehensive utilization of industrial solid waste, and discloses a dust removal device for superfine slag powder processing, which comprises a transition cavity, an air outlet, a device cavity, a passivation cavity, a filtering cavity, a swing sprinkling mechanism and a double rotating mechanism. The swing sprinkling mechanism is arranged to convert the continuous rotation of a motor into the reciprocating rotation of a collecting cylinder and a sprinkling pipe in a controllable range in a horizontal plane, the installation position of a limiting plate is flexibly adjusted, the swing range of the sprinkling pipe is accurately controlled, when the humidity of flue gas is significantly increased and the risk of condensation is increased, the sprinkling coverage range and uniformity of the inert powder can be increased through simple mechanical adjustment without relying on a complex electronic sensor and control system, the dry powder and the sticky dust particles can be fully mixed and passivated, the adhesion of the dust is significantly reduced from the source, the efficient and stable work of a subsequent filter bag is fundamentally guaranteed, and the adaptability of the dust removal device to harsh working conditions is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of comprehensive utilization of industrial solid waste, and more particularly to a dust removal device for superfine slag powder processing. BACKGROUND

[0002] When a device such as a vertical mill, a ball mill or a classifier grinds slag, the slag is broken into fine particles by mechanical forces such as impact and shear. These particles are carried by high-speed airflow and mixed with air to form dust-containing gas. The dust-containing gas then enters a bag filter for dust removal. The core principle of the bag filter is to intercept some particles in the dust-containing gas by using fiber filter material.

[0003] When the existing bag filter processes superfine slag powder with high humidity or containing oily components, if the flue gas temperature is not properly controlled or the humidity increases, the dust particles can easily absorb moisture and become sticky. This sticky dust cannot be effectively removed by the conventional pulse jet cleaning method after contacting the filter bag surface, resulting in a "bag sticking" phenomenon in which the filter bag pores are blocked. This not only causes the equipment operating resistance to continuously rise and energy consumption to increase, but also seriously shortens the service life of the filter bag and even causes the dust removal system to fail.

[0004] If a pretreatment method of adding inert powder is used, the powder itself can easily form a "bridge" or become hardened in the storage bin due to vibration or slight moisture, resulting in uneven or even interrupted feeding, which greatly reduces the pretreatment effect and cannot guarantee the stability of subsequent filtration. SUMMARY

[0005] To overcome the above-mentioned defects of the prior art, the present application provides a dust removal device for superfine slag powder processing to solve the problems in the background art.

[0006] The present application provides the following technical solution: a dust removal device for superfine slag powder processing, comprising a transition chamber, an air outlet, a device chamber, a passivation chamber and a filter chamber. The top of the transition chamber is fixedly connected with the filter chamber. The side of the transition chamber away from the filter chamber is fixedly connected with the passivation chamber. The top of the passivation chamber and the side of the filter chamber close to the passivation chamber are fixedly connected with the device chamber. The outer surface of the filter chamber is provided with an air outlet. The outer side of the passivation chamber is provided with an air inlet.

[0007] Further, the inside of the device chamber and the top of the passivation chamber are provided with a swing sprinkling mechanism. The inside of the swing sprinkling mechanism is provided with a double rotation mechanism.

[0008] Further, the inside of the filter chamber is fixedly connected with a transverse plate. The inside of the filter chamber is provided with a filter bag through the transverse plate.

[0009] Further, the mixed gas enters the device from the gas inlet, firstly enters the passivation cavity, is processed by the top swing sprinkling mechanism and the double rotation mechanism, passes through the transition cavity, is mainly filtered by the filter bag, and finally the filtered gas enters the filter cavity and is discharged from the gas outlet for subsequent processing.

[0010] Further, the swing sprinkling mechanism comprises a bottom plate fixedly connected to the top of the passivation cavity, a fixed block fixedly connected to the top of the bottom plate, a vertical plate fixedly connected to one side of the bottom plate and close to the filter cavity, a rotating column rotatably connected to the top of the fixed block, a collecting cylinder fixedly connected to the top of the rotating column, a double rotation mechanism arranged in the collecting cylinder, a sprinkling pipe formed in the outer portion of the collecting cylinder close to the bottom, and a rotating ring mechanism arranged in the rotating column.

[0011] Further, the rotating ring mechanism comprises a horizontal column rotatably connected to the inside of the rotating column, sleeve sleeves rotatably connected to the outer surface of the horizontal column, supports fixedly connected to the outer side of the sleeve, and a connecting rod fixedly connected to the other side of the support.

[0012] Further, the top of the vertical plate is fixedly connected to a limiting block, the side of the limiting block away from the rotating column is provided with a motor, the motor is fixedly connected to a special-shaped plate through the limiting block, the outer portion of the special-shaped plate is fixedly connected to a sleeve ring, one side of the special-shaped plate is provided with a screw rod, and the side of the special-shaped plate close to the motor is provided with a limiting plate through the screw rod.

[0013] Further, when the mixed gas inside the input device needs to be passivated, that is, when the mixed gas entering the cavity of the device contains a large amount of sticky dust particles, the motor will be started to rotate, and the rotation will be transmitted to the special-shaped plate fixedly connected to the motor by passing the limiting block. One of the special-shaped plates is fixedly connected with a limiting plate through a screw rod. The connecting rod is rotatably connected through the limiting plate. The rotation of the special-shaped plate, the limiting plate and the sleeve ring will rotate around the motor. During the rotation, one end of the connecting rod will move with the limiting plate. The other end of the connecting rod is fixedly connected with the support and the cross column is limited on the rotating column. The circular motion transmitted by the connecting rod is offset by the rotation of the sleeve and the support around the cross column in the vertical direction, leaving only horizontal displacement. The horizontal displacement is transmitted to the rotating column through the cross column. Therefore, the combined motion of the structure support, the special-shaped plate and the limiting plate converts the rotation of the special-shaped plate into the reciprocating rotation of the rotating column in the horizontal direction. The reciprocating rotation is continuously transmitted to the collecting cylinder and the spraying pipe, so that the inert powder in the collecting cylinder is uniformly sprayed into the passivation cavity. Three layers of holes are arranged on the special-shaped plate. According to the humidity content of the mixed gas, the screw rod and the limiting plate can be fixed on different layers of holes. The farther the hole is from the motor, the greater the rotation of the connecting rod will be, and the greater the rotation transmitted to the rotating column will be. Therefore, the sticky dust particles and the inert dry powder are mixed, and the passivation of the mixed gas is completed. The passivated mixed gas moves from the passivation cavity to the inside of the filter cavity and is filtered by the filter bag. Finally, it is discharged from the air outlet for further processing.

[0014] Further, the double rotation mechanism includes a center block arranged inside the collecting cylinder and on the top of the rotating column. The circumferential direction of the center block is uniformly provided with a connecting rod one. The other side of the connecting rod one is rotatably connected with a connecting rod two. The inner surface of the collecting cylinder is fixedly connected with a fixed ring. The inside of the fixed ring is slidably connected with a sliding block. The top of the sliding block is rotatably connected with the connecting rod two. The top of the rotating plate is rotatably connected with the top of the adjacent rotating plate with a limiting rod.

[0015] Further, the inert powder is collected and placed in the collecting cylinder. The rotation is transmitted to the center block through the reciprocating rotating column. The center block and the circumferential connecting rod one will reciprocate together. The rotation of the connecting rod one will move the connecting rod two. The other end of the connecting rod two is limited in the inside of the fixed ring through the sliding block. Therefore, the rotating plate will rotate around the rotating column. During the movement of the rotating plate, the rotating plate will also produce a rotation around the center due to the limiting of the limiting rod. The rotation around the rotating column and the rotation around the center of the rotating plate will greatly mix and stir the inert dust in the collecting cylinder.

[0016] Technical effects and advantages of the present application:

[0017] The application overcomes the problem of "bag sticking" that is prone to occur when the traditional cloth bag dust collector is used to treat high-humidity and high-viscosity dust by converting the continuous rotation of the motor into reciprocating rotation of the collecting cylinder and the spraying pipe within a controllable range in the horizontal plane. The multi-layer hole design on the special-shaped plate allows the operator to flexibly adjust the installation position of the limiting plate according to the actual humidity of the entering flue gas, thereby precisely controlling the swing range of the spraying pipe. When the humidity of the flue gas significantly increases and the risk of condensation increases, the spraying coverage range and uniformity of the inert powder can be increased by simple mechanical adjustment without relying on complex electronic sensors and control systems, so that the dry powder and the viscous dust particles can be fully mixed and passivated, thereby significantly reducing the adhesion of the dust from the source and providing a fundamental guarantee for the efficient and stable work of the subsequent filter bag, thereby greatly improving the adaptability of the dust removal device to harsh working conditions.

[0018] The application converts the reciprocating rotation transmitted by the swing spraying mechanism into the revolution of the rotating plate around the center axis and the rotation of the rotating plate around its own axis, which can produce extremely efficient mechanical stirring effect, ensure that the inert powder stored in the collecting cylinder is always in a highly fluidized state, completely avoid the risk of internal hardening, bridging or discharge port blockage caused by powder dampness and standing, and ensure the continuity and stability of powder supply. The forced uniformization of the powder is realized by a pure mechanical method, which lays a solid foundation for the swing spraying mechanism to continuously and uniformly provide dry powder. The two work together to form an efficient and purely mechanical pretreatment scheme for high-viscosity and high-humidity dust. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the application.

[0020] Figure 2 It is a schematic diagram of the overall structure of the application.

[0021] Figure 3 It is a schematic diagram of the device cavity structure of the application.

[0022] Figure 4 It is a schematic diagram of the filter bag structure of the application.

[0023] Figure 5 It is a schematic diagram of the swing spraying mechanism structure of the application.

[0024] Figure 6 It is a schematic diagram of the rotating ring mechanism structure of the application.

[0025] Figure 7 It is a schematic diagram of the rotating ring mechanism structure of the application.

[0026] Figure 8It is a schematic view of the double rotation mechanism structure of the application from top.

[0027] Figure 9 It is an exploded schematic view of the double rotation mechanism structure of the application.

[0028] The figure marks are: 1, transition cavity; 2, gas outlet; 3, device cavity; 4, passivation cavity; 5, filter cavity; 6, air inlet; 7, double rotation mechanism; 701, rotation plate; 702, limit rod; 703, fixed ring; 704, connecting rod one; 705, center block; 706, connecting rod two; 707, sliding block; 8, swing sprinkling mechanism; 801, bottom plate; 802, vertical plate; 803, fixed block; 804, rotation ring mechanism; 8041, motor; 8042, sleeve ring; 8043, horizontal column; 8044, special-shaped plate; 8045, sleeve; 8046, limit plate; 8047, screw rod; 8048, support; 8049, connecting rod; 805, rotation column; 806, collection cylinder; 807, limit block; 808, sprinkling pipe; 9, horizontal plate; 10, filter bag. DETAILED DESCRIPTION

[0029] The technical solutions in the application will be described clearly and completely below in combination with the drawings in the application, and in addition, the forms of each structure described in the following embodiments are only examples, and the dust removal device for superfine slag powder processing involved in the application is not limited to each structure described in the following embodiments, and all other embodiments obtained by ordinary technical personnel without creative labor belong to the protection scope of the application.

[0030] Referring to Figure 1 and Figure 2 , the application provides a dust removal device for superfine slag powder processing, which comprises a transition cavity 1, a gas outlet 2, a device cavity 3, a passivation cavity 4 and a filter cavity 5, the top of the transition cavity 1 is fixedly connected with the filter cavity 5, the side of the transition cavity 1 away from the filter cavity 5 is fixedly connected with the passivation cavity 4, the top of the passivation cavity 4 and the side of the filter cavity 5 close to the passivation cavity 4 are fixedly connected with the device cavity 3, the outer surface of the filter cavity 5 is provided with the gas outlet 2, and the outer side of the passivation cavity 4 is provided with an air inlet 6.

[0031] Referring to Figure 3 , the inside of the device cavity 3 and the top of the passivation cavity 4 are provided with a swing sprinkling mechanism 8, and the inside of the swing sprinkling mechanism 8 is provided with a double rotation mechanism 7.

[0032] Referring to Figure 4 , the inside of the filter cavity 5 is fixedly connected with a horizontal plate 9, and the filter cavity 5 is provided with a filter bag 10 through the horizontal plate 9.

[0033] Referring to Figure 3 andFigure 4 The mixed gas enters the device from the air inlet 6, firstly enters the passivation cavity 4, is processed by the top swing sprinkling mechanism 8 and the double rotation mechanism 7, passes through the transition cavity 1, is mainly filtered by the filter bag 10, and finally the filtered gas enters the filter cavity 5 and is discharged from the air outlet 2 for subsequent processing.

[0034] With reference to Figure 5 The swing sprinkling mechanism 8 comprises a bottom plate 801 fixedly connected to the top of the passivation cavity 4, a fixed block 803 fixedly connected to the top of the bottom plate 801, a vertical plate 802 fixedly connected to one side of the bottom plate 801 and close to the filter cavity 5 inside the device cavity 3, a rotating column 805 rotatably connected to the top of the fixed block 803, a collecting cylinder 806 fixedly connected to the top of the rotating column 805, a double rotation mechanism 7 arranged inside the collecting cylinder 806, a sprinkling pipe 808 formed at a position close to the bottom of the outside of the collecting cylinder 806, and a rotating ring mechanism 804 arranged inside the rotating column 805.

[0035] With reference to Figure 6 The rotating ring mechanism 804 comprises a horizontal column 8043 rotatably connected inside the rotating column 805, sleeve 8045 rotatably connected to the outer surface of the horizontal column 8043, a support 8048 fixedly connected to the outside of the sleeve 8045, and a connecting rod 8049 fixedly connected to the other side of the support 8048.

[0036] With reference to Figure 7 The vertical plate 802 is fixedly connected to a limiting block 807 at the top, a motor 8041 is arranged on the side of the limiting block 807 away from the rotating column 805, a special-shaped plate 8044 is fixedly connected to the motor 8041 through the limiting block 807, a sleeve ring 8042 is fixedly connected to the outside of the special-shaped plate 8044, a screw rod 8047 is arranged on one side of the special-shaped plate 8044, and a limiting plate 8046 is arranged on the side of the special-shaped plate 8044 close to the motor 8041 through the screw rod 8047.

[0037] With reference to Figure 6 and Figure 7When the humidity of the mixed gas inside the input device is high and needs to be passivated, that is, when the mixed gas entering the cavity 3 of the device contains a large amount of sticky dust particles, the motor 8041 will be started to rotate, and the rotation will be transmitted to the special-shaped plate 8044 fixedly connected to the motor 8041 by passing the limiting block 807. One of the special-shaped plates 8044 is fixedly connected to the limiting plate 8046 through the screw rod 8047. The limiting plate 8046 is rotatably connected to the connecting rod 8049. The rotation of the special-shaped plate 8044, the limiting plate 8046 and the sleeve ring 8042 will rotate around the motor 8041. In the process of rotation, one end of the connecting rod 8049 will move with the limiting plate 8046. The other end of the connecting rod 8049 is fixedly connected to the bracket 8048, and the cross column 8043 is limited on the rotating column 805. The circular motion transmitted by the connecting rod 8049 is offset by the rotation of the sleeve 8045 and the bracket 8048 around the cross column 8043 in the vertical direction, leaving only horizontal displacement. The horizontal displacement is transmitted to the rotating column 805 through the cross column 8043. Therefore, the combined motion of the structure bracket 8048, the special-shaped plate 8044 and the limiting plate 8046 converts the rotation of the special-shaped plate 8044 into the reciprocating rotation of the rotating column 805 in the horizontal direction. The reciprocating rotation is continuously transmitted to the collecting cylinder 806 and the spraying pipe 808, so that the inert powder in the collecting cylinder 806 is uniformly sprayed into the passivation cavity 4. Three layers of holes are arranged on the special-shaped plate 8044. According to the humidity content of the mixed gas, the screw rod 8047 and the limiting plate 8046 can be fixed on different layers of holes. The farther the hole is from the motor 8041, the greater the rotation of the connecting rod 8049 can be caused, so that the rotation of the rotating column 805 is also greater, so that the sticky smoke dust particles are mixed with the inert dry powder, and the passivation of the mixed gas is completed. The passivated mixed gas moves from the passivation cavity 4 to the inside of the filter cavity 5, and is filtered by the filter bag 10, and finally discharged from the gas outlet 2 for further processing.

[0038] With reference to Figure 8 and Figure 9 , the double rotation mechanism 7 comprises a center block 705 arranged in the collecting cylinder 806 and the top of the rotating column 805. The circumferential surface of the center block 705 is uniformly provided with a connecting rod one 704. The other side of the connecting rod one 704 is rotatably connected with a connecting rod two 706. The inner surface of the collecting cylinder 806 is fixedly connected with a fixed ring 703. The inside of the fixed ring 703 is slidably connected with a sliding block 707. The top of the sliding block 707 is rotatably connected with the connecting rod two 706. The top of the connecting rod one 704 is rotatably connected with a rotating plate 701. The top of the rotating plate 701 is rotatably connected with a limiting rod 702.

[0039] With reference to Figure 8 andFigure 9 The inert dusts collected in the collecting cylinder 806 are transmitted to the central block 705 by the reciprocating rotation of the rotating column 805, and the central block 705 and the circumferentially arranged connecting rod 704 are reciprocally rotated, the connecting rod 704 is moved together with the connecting rod 706, the other end of the connecting rod 706 is limited in the inside of the fixed ring 703 through the sliding block 707, thus the rotating plate 701 is rotated around the rotating column 805, and the rotating plate 701 is also rotated around the center during the movement of the rotating plate 701 because of the limiting arrangement of the limiting rod 702, so that the inert dusts in the collecting cylinder 806 are greatly mixed and stirred by the movement of revolving around the rotating column 805 and revolving around the center of the rotating plate 701.

[0040] The working principle of the present application is as follows: the mixed gas enters the device from the gas inlet 6, firstly enters the passivation cavity 4, when the humidity of the mixed gas entering the device is high and needs to be passivated, or when the mixed gas entering the cavity 3 of the device contains a large amount of sticky dust particles, the motor 8041 is started to rotate, and the rotation is transmitted to the special-shaped plate 8044 through the limiting block 807. One of the plates of the special-shaped plate 8044 is fixed with the limiting plate 8046 through the screw rod 8047, and the connecting rod 8049 is rotatably connected through the limiting plate 8046. The rotation of the special-shaped plate 8044, the limiting plate 8046 and the sleeve ring 8042 around the motor 8041 will cause the limiting plate 8046 to move, and the other end of the connecting rod 8049 is fixedly connected with the support 8048 and the cross column 8043 is limited on the rotating column 805. The circular motion transmitted by the connecting rod 8049 is offset by the rotation of the sleeve 8045 and the support 8048 around the cross column 8043, only the horizontal displacement is left, and the horizontal displacement is transmitted to the rotating column 805 through the cross column 8043. Therefore, the combined motion of the structure support 8048, the special-shaped plate 8044 and the limiting plate 8046 converts the rotation of the special-shaped plate 8044 into the reciprocating rotation of the rotating column 805 in the horizontal direction, and the reciprocating rotation is continuously transmitted to the collecting cylinder 806 and the spraying pipe 808. The inert powder is collected in the collecting cylinder 806, and the rotation is transmitted to the center block 705 through the rotating column 805, and the center block 705 rotates together with the connecting rod one 704 arranged around it. The rotation of the connecting rod one 704 will drive the connecting rod two 706 to move together, and the other end of the connecting rod two 706 is limited in the fixed ring 703 through the sliding block 707. Therefore, the rotating plate 701 rotates around the rotating column 805, and the rotating plate 701 also rotates around its center during the movement of the rotating plate 701 due to the limiting of the limiting rod 702. The rotation of the rotating plate 701 around the rotating column 805 and the rotation of the rotating plate 701 around its center at the same time greatly mixes and stirs the inert dust in the collecting cylinder 806. Through the reciprocating motion of the collecting cylinder 806 and the spraying pipe 808, the inert powder in the collecting cylinder 806 is uniformly sprayed into the passivation cavity 4. The special-shaped plate 8044 is provided with three layers of holes, and the screw rod 8047 and the limiting plate 8046 can be fixed in different layers of holes according to the humidity content of the mixed gas. The farther the hole is from the motor 8041, the greater the rotation of the connecting rod 8049 will be, and the greater the rotation of the rotating column 805 will be, so that the sticky dust particles and the inert dry powder are mixed, and the passivation of the mixed gas is completed. The passivated mixed gas moves from the passivation cavity 4 to the inside of the filter cavity 5, and is filtered by the filter bag 10.Finally, the gas is discharged from the outlet 2 for further processing.

[0041] Finally: the above only for the preferred embodiments of the present application, and not for limiting the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A dust removal device for processing ultrafine slag powder, comprising a transition chamber (1), an air outlet (2), a device chamber (3), a passivation chamber (4), and a filter chamber (5), characterized in that: A filter chamber (5) is fixedly connected to the top of the transition chamber (1), and a passivation chamber (4) is fixedly connected to the side of the transition chamber (1) away from the filter chamber (5). A device chamber (3) is fixedly connected to the top of the passivation chamber (4) and the side of the filter chamber (5) near the passivation chamber (4). An air outlet (2) is provided on the outer surface of the filter chamber (5), and an air inlet (6) is provided on the outer side of the passivation chamber (4). The device cavity (3) and the top of the passivation cavity (4) are provided with a swing spraying mechanism (8), and the swing spraying mechanism (8) is provided with a double rotation mechanism (7). The swing spraying mechanism (8) includes a base plate (801) fixedly connected to the top of the passivation chamber (4), a fixing block (803) fixedly connected to the top of the base plate (801), a vertical plate (802) fixedly connected to the side of the device cavity (3) near the filter chamber (5) and the side of the base plate (801), a rotating column (805) rotatably connected to the top of the fixing block (803), a collecting cylinder (806) fixedly connected to the top of the rotating column (805), a double rotating mechanism (7) is provided inside the collecting cylinder (806), a spraying pipe (808) is opened on the outside of the collecting cylinder (806) near the bottom, and a rotating ring mechanism (804) is provided inside the rotating column (805). The rotating ring mechanism (804) includes a horizontal column (8043) rotatably connected inside the rotating column (805), sleeves (8045) rotatably connected to both sides of the outer surface of the horizontal column (8043), a bracket (8048) fixedly connected to the outer side of the sleeve (8045), and a connecting rod (8049) fixedly connected to the other side of the bracket (8048). A limiting block (807) is fixedly connected to the top of the vertical plate (802). A motor (8041) is provided on the side of the limiting block (807) away from the rotating column (805). A shaped plate (8044) is fixedly connected to the motor (8041) through the limiting block (807). A collar (8042) is fixedly connected to the outside of the shaped plate (8044). A screw (8047) is provided on one side of the shaped plate (8044). A limiting plate (8046) is provided on the side of the shaped plate (8044) near the motor (8041) through the screw (8047). The other end of the connecting rod (8049) is rotatably connected through the inside of the limiting plate (8046). The dual rotation mechanism (7) includes a central block (705) disposed inside the collection cylinder (806) and at the top of the rotating column (805). A first connecting rod (704) is evenly distributed around the central block (705). A second connecting rod (706) is rotatably connected to the bottom of the other side of the first connecting rod (704). A fixed ring (703) is fixedly connected to the inner surface of the collection cylinder (806). A sliding block (707) is slidably connected inside the fixed ring (703). A second connecting rod (706) is rotatably connected to the top of the sliding block (707). A rotating plate (701) is rotatably connected to the top of the first connecting rod (704). A limit rod (702) is rotatably connected to the top of the rotating plate (701) and the top of the adjacent rotating plate (701).

2. The dust removal device for processing ultrafine slag powder according to claim 1, characterized in that: A horizontal plate (9) is fixedly connected inside the filter chamber (5), and a filter bag (10) is provided inside the filter chamber (5) through the horizontal plate (9).

Images