Humidifying and stirring device for materials and control system

Abstract

The invention belongs to the technical field of dust suppression, and discloses a humidifying and stirring device for materials and a control system.The stirring device comprises a stirring and conveying structure and a humidifying structure; the stirring and conveying structure comprises a container used for containing materials, and the humidifying structure sprays water flow from the two sides of the container to the middle of the container to form a water curtain used for dust falling. According to the invention, the water curtain limits raised dust raised by the stirring and conveying structure in a certain area to prevent the raised dust from escaping, in addition, water drops in the water curtain can wrap dust after falling down, under the action of gravity, the dust is forced to fall into the container, the rising capability of the raised dust is further impacted, and moisture is mixed with dry ash after entering the container, so that the dust is prevented from escaping. The materials meeting the humidity requirement are formed, the constraint on the dry ash is increased, the possibility that the dry ash is raised is reduced, the materials meeting the humidity requirement are conveyed to the discharging port under the action of the stirring and conveying structure, the discharge of the dry ash can reach the related standard, and dust is prevented from polluting the environment and harming the health of personnel.

Description

Technical Field

[0001] This invention belongs to the field of dust suppression technology, specifically relating to a humidifying and stirring device and control system for materials. Background Technology

[0002] When ash is discharged from the boiler's ash silo, it needs to be stirred and transported, which generates a large amount of dust, causing pollution to the surrounding environment and failing to meet pollutant emission standards.

[0003] Based on the aforementioned objective reasons, a material humidification and mixing device and control system are provided to solve the environmental pollution problem caused by dust emission. In this process, automation reduces human intervention and ensures the health of workers. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a material humidification and stirring device and control system.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0006] In a first aspect, the present invention provides a humidifying and stirring device for materials, comprising a stirring and conveying structure and a humidifying structure;

[0007] The mixing and conveying structure includes a container for holding materials, the top of which is open;

[0008] The humidification structure is arranged on both sides of the container, and the humidification structure sprays water from both sides of the container to the middle of the container to form a water curtain for dust suppression. The humidification structure includes a water pressure sensor for monitoring the internal water pressure.

[0009] In this invention, water is sprayed from both sides of the container toward the center to form a water curtain for dust suppression. The water curtain confines the dust stirred up by the mixing and conveying structure to a certain area, preventing dust from escaping. In addition, the water droplets in the water curtain can carry away dust as they fall, and under the action of gravity, force the dust to fall into the interior of the container, further reducing the upward ability of the dust. After the water enters the container, it mixes with the dry ash to form a material that meets the humidity requirements, and increases the binding of the dry ash, reducing the possibility of the dry ash rising. The material that meets the humidity requirements is conveyed to the discharge port under the action of the mixing and conveying structure.

[0010] Since the humidification structure is in a dusty environment, it may become clogged. The water pressure sensor is used to monitor the water pressure. When the water pressure rises due to the blockage, equipment failures such as pipe bursts may occur. The rise in the water pressure sensor value can provide the staff with useful equipment operation data.

[0011] Secondly, the present invention provides a control system for humidifying and stirring materials. The control system controls the aforementioned humidifying and stirring device for materials and includes a controller, a host computer, a temperature sensor, a speed sensor, and a torque sensor. The controller is electrically connected to the temperature sensor, the speed sensor, the torque sensor, and the water pressure sensor, and the host computer is electrically connected to the controller.

[0012] In this invention, the controller controls each electrical structure through signals, the host computer is used for information communication between humans and machines, and temperature sensors, speed sensors, and torque sensors can monitor the temperature, speed, torque, etc. in the mixing and conveying structure. The control system reduces manual intervention in the material mixing and conveying process. On the one hand, the staff only need to do management work and deal with emergencies in a timely manner. On the other hand, they can stay away from the site and ensure their own health.

[0013] The beneficial effects of this invention are:

[0014] 1. It can effectively reduce dust generation, avoid dust pollution, and ensure that the discharge of dry ash meets the standards. Specifically, water is sprayed from both sides of the container to the middle of the container to form a water curtain for dust suppression. The water curtain restricts the dust agitated by the mixing and conveying structure to a certain area, preventing dust from escaping. In addition, the water droplets in the water curtain can carry away dust after falling, and under the action of gravity, force the dust to fall into the interior of the container, further reducing the upward ability of dust. After the water enters the container, it mixes with the dry ash to form a material that meets the humidity requirements, and increases the binding of the dry ash, reducing the possibility of dry ash rising. The material that meets the humidity requirements is conveyed to the discharge port under the action of the mixing and conveying structure.

[0015] 2. It requires minimal human intervention, involves low investment, is easy to install, has a simple system, and has low maintenance costs. Attached Figure Description

[0016] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0017] Figure 1 This is a schematic diagram of the humidification structure arranged on the container in an embodiment of the present invention;

[0018] Figure 2 For the embodiments of the present invention in Figure 1 A magnified view of a section at point A in the middle;

[0019] Figure 3 For the embodiments of the present invention in Figure 2 Schematic diagram of the mid-support structure;

[0020] Figure 4 For the embodiments of the present invention in Figure 2 Schematic diagram of the middle tube seat;

[0021] Figure 5 For the embodiments of the present invention in Figure 2 Schematic diagram of the structure of the medium-sized water transmission pipeline;

[0022] Figure 6 This is a schematic diagram of the stirring and conveying structure in an embodiment of the present invention;

[0023] The symbols for the main components are explained below:

[0024] 1. Reinforcing rib; 2. Base plate; 3. Gearbox; 4. Shaft end guard; 5. Pulley; 6. Reducer; 7. Coupling; 8. Gear guard; 9. Container; 10. Manhole; 11. Agitator blades; 12. Agitator shaft;

[0025] 14. Bracket; 141. Plate 1; 142. Plate 2; 143. Limiting groove; 144. Lower through hole;

[0026] 15. Pipe seat; 151. Base; 152. Column; 153. Snap ring; 154. Threaded hole; 155. Top through hole;

[0027] 16. Water supply pipe; 161. Pipe body; 162. Branch pipe; 163. Groove; 164. Handle; 165. Nozzle seat;

[0028] 17. Set bolts;

[0029] 18. Nozzle. Detailed Implementation

[0030] The technical solutions of the present invention will be described in detail below with reference to specific embodiments and accompanying drawings. The embodiments described herein are specific implementations of the present invention, used to illustrate the concept of the present invention; these descriptions are explanatory and exemplary, and should not be construed as limiting the implementation methods or the scope of protection of the present invention. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0031] Example 1

[0032] like Figure 1 As shown, this embodiment provides a material humidification and stirring device, including a stirring and conveying structure and a humidification structure;

[0033] The mixing and conveying structure includes a container 9 for holding materials, with the top of the container 9 open;

[0034] The humidification structure is arranged on both sides of the container 9. The humidification structure sprays water from both sides of the container 9 to the middle of the container 9 to form a water curtain for dust suppression. The humidification structure includes a water pressure sensor for monitoring the internal water pressure.

[0035] In this embodiment, water is sprayed from both sides of container 9 toward the middle of container 9 to form a water curtain for dust suppression. The water curtain restricts the dust stirred up by the stirring and conveying structure to a certain area, preventing the dust from escaping. In addition, the water droplets in the water curtain can carry away the dust after falling, and under the action of gravity, force the dust to fall into the interior of container 9, further reducing the upward ability of the dust. After the water enters container 9, it mixes with the dry ash to form a material that meets the humidity requirements, and increases the binding of the dry ash, reducing the possibility of the dry ash rising. The material that meets the humidity requirements is conveyed to the discharge port under the action of the stirring and conveying structure.

[0036] Since the humidification structure is in a dusty environment, it may become clogged. The water pressure sensor is used to monitor the water pressure. When the water pressure rises due to the blockage, equipment failures such as pipe bursts may occur. The rise in the water pressure sensor value can provide the staff with useful equipment operation data.

[0037] Example 2

[0038] like Figure 2 As shown, this embodiment provides a material humidification and stirring device. The difference from embodiment 1 is that the humidification structure includes a water supply pipe 16. The pipe wall of the water supply pipe 16 is provided with a plurality of nozzle seats 165. The nozzle seats 165 are connected to nozzles 18. When the nozzles 18 rotate with the water supply pipe 16, they adjust their orientation.

[0039] In this embodiment, the orientation of the nozzle 18 is adjusted by changing the circumferential orientation of the water supply pipe 16. This is mainly because the nozzle 18 is mounted on the water supply pipe 16, and the orientation of all nozzles 18 can be directly adjusted by rotating the water supply pipe 16, which is more convenient.

[0040] The purpose of adjusting the direction of nozzle 18 is to expand or shrink the dust suppression space surrounded by the water curtain. When the mixing and conveying structure is in operation, if its rotation speed is too fast, the dry ash in container 9 will have very strong kinetic energy. If the water curtain is relatively low, the dry ash will rise too fast, and some dry ash will easily pass through the gaps in the water curtain and escape into the external environment without restraint. The solution is to make the outlet of nozzle 18 more upward, expand the space between the water curtain and container 9, give the dry ash more room to move, and consume its power through gravity during the movement. When the dry ash is about to approach the water curtain, most of its kinetic energy has been converted into potential energy, and it does not have enough power to pass through the water curtain, thus being restrained inside by the water curtain and preventing it from escaping into the external environment.

[0041] In some optional examples, nozzle 18 is a fan-shaped nozzle. This is because the water jet from a fan-shaped nozzle is distributed in a fan shape, which covers a large area. On the one hand, this reduces the number of nozzles used. On the other hand, there can be an overlapping area between two adjacent fan-shaped nozzles, which increases the interception effect.

[0042] Example 3

[0043] like Figure 2 , 4 As shown in Figure 5, this embodiment provides a material humidification and stirring device. The difference from Embodiment 1 is that the water supply pipe 16 is provided with a pipe body 161 and branch pipes 162 located at both ends of the pipe body 161 along the axial direction. One end of the branch pipe 162 serves as a water inlet, and the other end of the branch pipe 162 serves as a drain outlet and is connected to a valve. Each of the branch pipes 162 at both ends of the pipe body 161 is fitted with a pipe seat 15 for supporting and limiting the water supply pipe 16. A water pressure sensor is mounted on the pipe body 161.

[0044] The outer diameter of the branch pipe 162 is smaller than the outer diameter of the pipe body 161. The pipe seat 15 is provided with a retaining ring 153 adapted to the branch pipe 162. The retaining ring 153 is provided with a threaded hole 154 in the radial direction. The threaded hole 154 is connected to a set bolt 17. When the set bolt 17 abuts against the branch pipe 162, the branch pipe 162 and the pipe body 161 are restricted in their rotational freedom. When the set bolt 17 does not abut against the branch pipe 162, the branch pipe 162 and the pipe body 161 have the freedom of rotation about the retaining ring 153.

[0045] In this embodiment, the branch pipe 162, which serves as the water inlet, is connected to a pressurized water source. This water source is sprayed outward through a specific outlet to form a water curtain. When these outlets used to form the water curtain are blocked, if the pressurized water source continues to be supplied, it can easily cause the entire system to malfunction. At this time, it is necessary to release the water. The release port is connected to the branch pipe 162 on the other side, and the branch pipe 162 on the other side is connected to a valve. When it is necessary to release the water, the valve is opened, and when it is not necessary to release the water, the valve is closed. The water pressure sensor is used to monitor the internal water pressure, which can indirectly reflect whether a blockage has occurred.

[0046] The pipe seat 15 is used to place the branch pipe 162. The outer diameter of the branch pipe 162 is smaller than the outer diameter of the pipe body 161, which naturally forms a stepped structure. When the pipe seat 15 touches the step, it limits the positional relationship between the pipe seat 15 and the branch pipe 162. In order to lock the branch pipe 162 relative to the pipe seat 15 and restrict the rotational freedom of the branch pipe 162, a set bolt 17 is specially provided. When the set bolt 17 rotates downward about the threaded hole 154 and touches the surface of the branch pipe 162, the set bolt 17 squeezes the branch pipe 162, increasing the friction between the two. This friction keeps the branch pipe 162 stable.

[0047] In some alternative embodiments, the outer wall of the branch pipe 162 is provided with a plurality of grooves 163, the diameter of which is larger than the diameter of the set bolt 17. When the set bolt 17 abuts against the branch pipe 162, the end of the set bolt 17 is located in the groove 163. This design is to increase the restraining ability of the set bolt 17 on the branch pipe 162. When the set bolt 17 enters the groove 163, if the branch pipe 162 wants to be forcibly rotated at this time, the set bolt 17 can interfere with the groove 163, thereby restricting the rotation of the branch pipe 162.

[0048] In some alternative examples, the outer wall of the tube 161 is provided with a handle 164, which provides a point of leverage when rotating the tube 161 to adjust the direction of the water curtain.

[0049] Example 4

[0050] like Figure 2 , 3 As shown in Figure 4, this embodiment provides a material humidification and stirring device. The difference from embodiment 3 is that the humidification structure includes four supports 14, which are distributed around the container 9 in the form of square corner points. The supports 14 are provided with plate 141 and plate 142.

[0051] Plate 141 is attached to the side wall of container 9, and plate 2142 is parallel to or overlaps with the upper surface of container 9.

[0052] The tube base 15 is also provided with a base 151 and a column 152. The base 151 is located at the lower end of the column 152, and the retaining ring 153 is located at the upper end of the column 152.

[0053] Plate 142 is provided with a limiting groove 143 that is adapted to the base 151. Plate 142 is provided with a lower through hole 144 in the limiting groove 143. The base 151 is provided with an upper through hole 155. The tube seat 15 is fixed to the bracket 14 by bolts and nuts. The lower through hole 144 and the upper through hole 155 are used to pass bolts.

[0054] In this embodiment, the bracket 14 is fixed on the container 9 to support the tube seat 15 and provide the installation position for the tube seat 15. The first plate 141 is attached to the side wall of the container 9, and the second plate 142 is parallel or coincident with the upper surface of the container 9. The installation posture of the bracket 14 can be determined. As for the installation position, it is determined according to the actual needs. The position of the bracket 14 determines the basic position of the water curtain. The starting position of the water curtain can be adjusted by changing the height position of the bracket 14.

[0055] Once the position of the bracket 14 is determined, the limiting groove 143 is used to determine the position of the pipe seat 15. Once the position of the pipe seat 15 is determined, the height of the water supply pipe 16 is directly determined. The pipe seat 15 is fixed to the bracket 14 by bolts and nuts. The bolts pass through the lower through hole 144 and the upper through hole 155 and are then locked into the nuts, thus achieving detachable fixing.

[0056] Example 5

[0057] like Figure 6 As shown, this embodiment provides a material humidification and stirring device. The difference from embodiment 1 is that the stirring and conveying structure includes a shaft end protective cover 4, a gear protective cover 8, a base plate 2 for bearing and serving as a mounting surface, a container 9 fixed on the base plate 2, a reinforcing rib 1 arranged between the container 9 and the base plate 2, a stirring shaft 12 connected to the container 9, stirring blades 11 provided on the circumferential surface of the stirring shaft 12, the stirring shaft 12 extending out of the container 9 and connected to the output end of the gearbox 3, the input end of the gearbox 3 connected to the reducer 6 through a coupling 7, the input end of the reducer 6 connected to a pulley 5, the pulley 5 connected to a power source through a belt, and the container 9 provided with a manhole 10 and a sealing door for opening and closing.

[0058] In this embodiment, the power source, such as an electric motor, drives the pulley 5 to rotate via a belt. The pulley 5 transmits power to the reducer 6. After the reducer changes the speed and torque, it transmits the power to the gearbox 3 via the coupling 7. The gearbox 3 then further drives the stirring shaft 12 to rotate at the desired speed and torque. The rotation of the stirring shaft 12 and the stirring blades 11 can stir the material while driving the material forward. The shaft end guard 4 and the gear guard 8 both serve a protective function. The base plate 2 is used for bearing and as a basic mounting surface. The reinforcing rib 1 is used for reinforcement. The manhole 10 facilitates the inspection of the bottom of the container 9.

[0059] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A humidifying and stirring device for materials, characterized in that: This includes a mixing and conveying structure as well as a humidification structure; The mixing and conveying structure includes a container (9) for holding materials, the top of which is open; The humidification structure is arranged on both sides of the container (9). The humidification structure sprays water from both sides of the container (9) to the middle of the container (9) to form a water curtain for dust suppression. The humidification structure includes a water pressure sensor for monitoring the internal water pressure.

2. The material humidification and stirring device according to claim 1, characterized in that: The humidification structure includes a water supply pipe (16), and the pipe wall of the water supply pipe (16) is provided with a plurality of nozzle seats (165). The nozzle seats (165) are connected to nozzles (18). When the nozzles (18) rotate with the water supply pipe (16), they adjust their orientation.

3. The material humidification and stirring device according to claim 2, characterized in that: The nozzle (18) is a fan-shaped nozzle.

4. The material humidification and stirring device according to claim 1, characterized in that: The water supply pipe (16) is provided with a pipe body (161) and branch pipes (162) located at both ends of the pipe body (161) along the axial direction. One end of the branch pipe (162) serves as a water inlet, and the other end of the branch pipe (162) serves as a backup outlet for drainage and is connected to a valve. Each of the branch pipes (162) at both ends of the pipe body (161) is fitted with a pipe seat (15) for supporting and limiting the water supply pipe (16). The water pressure sensor is mounted on the pipe body (161). The outer diameter of the branch pipe (162) is smaller than the outer diameter of the pipe body (161). The pipe seat (15) is provided with a retaining ring (153) adapted to the branch pipe (162). The retaining ring (153) is provided with a threaded hole (154) about the radial direction. The threaded hole (154) is connected to a set bolt (17). When the set bolt (17) abuts against the branch pipe (162), the branch pipe (162) and the pipe body (161) are restricted in their rotational freedom. When the set bolt (17) does not abut against the branch pipe (162), the branch pipe (162) and the pipe body (161) have a degree of freedom of rotation about the retaining ring (153).

5. The material humidification and stirring device according to claim 4, characterized in that: The outer wall of the branch pipe (162) is provided with several grooves (163). The diameter of the grooves (163) is larger than the diameter of the set bolt (17). When the set bolt (17) abuts against the branch pipe (162), the end of the set bolt (17) is located in the groove (163).

6. The material humidification and stirring device according to claim 4, characterized in that: The humidification structure includes four supports (14), which are distributed around the container (9) in the form of square corner points. Each support (14) has a plate 1 (141) and a plate 2 (142). The first plate (141) is attached to the side wall of the container (9), and the second plate (142) is parallel to or overlaps with the upper surface of the container (9). The tube seat (15) is also provided with a base (151) and a column (152). The base (151) is located at the lower end of the column (152), and the retaining ring (153) is located at the upper end of the column (152). The second plate (142) is provided with a limiting groove (143) that is adapted to the base (151). The second plate (142) is provided with a lower through hole (144) in the limiting groove (143). The base (151) is provided with an upper through hole (155). The tube seat (15) is fixed to the bracket (14) by bolts and nuts. The lower through hole (144) and the upper through hole (155) are used for bolts.

7. The material humidification and stirring device according to claim 4, characterized in that: The outer wall of the tube (161) is provided with a handle (164).

8. The material humidification and stirring device according to claim 1, characterized in that: The stirring and conveying structure includes a shaft end guard (4), a gear guard (8), and a base plate (2) for bearing and serving as a mounting surface. The container (9) is fixed on the base plate (2). Reinforcing ribs (1) are arranged between the container (9) and the base plate (2). The container (9) is connected to a stirring shaft (12). The stirring shaft (12) has stirring blades (11) on its circumferential surface. The stirring shaft (12) extends out of the container (9) and is connected to the output end of the gearbox (3). The input end of the gearbox (3) is connected to a reducer (6) via a coupling (7). The input end of the reducer (6) is connected to a pulley (5). The pulley (5) is connected to a power source via a belt. The container (9) is provided with a manhole (10) and a sealing door for opening and closing.

9. A control system for humidifying and stirring materials, characterized in that: The control system controls a material humidification and stirring device according to any one of claims 1 to 8, and includes a controller, a host computer, a temperature sensor, a speed sensor, and a torque sensor. The controller is electrically connected to the temperature sensor, the speed sensor, the torque sensor, and the water pressure sensor, and the host computer is electrically connected to the controller.

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