Novel pre-dedusting and fire-retarding device
Through the new pre-dust removal and fire retardant device combining ash storage bucket, cyclone device and spray cooling technology, the existing equipment has solved the problems of high cost and poor removal effect, and achieved efficient dust and large particles removal, extending the device The service life of the parts.
Patent Information
- Application Number
- CN202420894325.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-28
AI Technical Summary
The existing dust removal devices and fire retardants have problems with high investment costs and operating costs, and it is difficult to effectively remove dust and large-particle combustion materials.
Design a new type of pre-dust removal and fire arresting device, combining ash storage bucket, sealed shell, cyclone device, flow blocker, acceleration tube, flow expander, blocking device, nozzle, ring pipe and drive motor, through multiple The combined effect of subsetting, centrifugal force and spray cooling can achieve the removal of dust and large particles in the flue gas.
It effectively reduces investment and operating costs, improves the dust removal effect of dust removal and fire-retardant devices, extends the service life of device parts, and solves the problem of removing dust and large-particle combustion materials.
Smart Images
Figure CN222143105U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dust removal and fire arresting devices, in particular to a novel pre-dust removal and fire arresting device. Background Art
[0002] At present, common dust removal devices include cyclone dust removal and spray washing pre-dust removal. Cyclone dust removal removes dust by centrifugal force, and spray washing pre-dust removal uses liquid to arrange nozzles according to the coverage rate, and removes dust by the surface tension and washing effect of the liquid. The above two dust removal devices with good dust removal effect occupy a large area and have high resistance but do not have fire-retardant performance, while those with small area have poor dust removal effect and are difficult to repair and maintain.
[0003] Common fire arresting devices include regenerative flame arresters, which allow flue gas to pass through the cooler plate group. Under the action of inertial collision and gravity sedimentation, large particles and sparks in the flue gas directly enter the ash hopper, and the flue gas temperature is rapidly reduced by cooling the tube plate. The flame arrester can only be used to deal with large particles and sparks in the flue gas. The product occupies a large area, has large device resistance and poor dust removal effect.
[0004] Therefore, a device combining a dust removal device and a fire arrester is proposed, which can reduce investment cost and operation cost while solving the difficulty of removing dust and large particles of combustion products. Utility Model Content
[0005] The utility model aims to provide a novel pre-dust removal and fire arrester device to solve the problems of high investment cost and operation cost and difficulty in removing dust and large particles of combustion products when the dust removal device and the fire arrester are used separately in the above background.
[0006] The purpose of the utility model can be achieved through the following technical solutions:
[0007] A novel pre-dust removal and fire-blocking device comprises an ash hopper, a sealed shell is installed on the top of the ash hopper, a lower sealing plate of a cyclone device is installed on the inner wall of the sealed shell, a flue gas cyclone device is installed on the top of the lower sealing plate of the cyclone device, an upper sealing plate of the cyclone device is installed on the top of the flue gas cyclone device, a baffle is installed on the inner wall of the sealed shell, an accelerating tube is installed on the top of the baffle, a diffuser is installed on the top of the accelerating tube, and a plurality of blocking devices are installed on the inner wall of the sealed shell.
[0008] As a further solution of the utility model: a smoke inlet is provided at the bottom of the side wall of the sealed shell, and a smoke outlet is provided at the top of the side wall of the sealed shell.
[0009] As a further solution of the utility model: a ring plate is installed on the inner wall of the sealing shell, and the ring plate is located below the lower sealing plate of the swirl device. A plurality of nozzles are opened and installed on the inner surface of the ring plate, and the nozzles are distributed in a circular array on the inner surface of the ring plate.
[0010] As a further solution of the utility model: a movable ring is provided inside the ring plate, a plurality of holes are provided at the center of the movable ring, and a plurality of steel balls are installed on the top of the movable ring.
[0011] As a further solution of the utility model: a clamping plate is installed at the bottom of the movable ring, a driving gear is installed on the side wall of the clamping plate of the movable ring, and the driving gear is engaged with the clamping plate of the movable ring through teeth.
[0012] As a further solution of the utility model: a rotating rod is installed through the center of the driving gear, and a driving motor is installed on the top of the rotating rod.
[0013] As a further solution of the utility model: an annular through pipe is installed inside the ring plate, a water inlet pipe is installed on the side wall of the annular through pipe, and the water inlet pipe penetrates the side wall of the sealing shell.
[0014] Beneficial effects of the utility model:
[0015] (1) The utility model uses a flue gas cyclone device, a flow blocker, an accelerating tube, a flow diffuser and a blocking device to remove dust and particles with sparks in the incoming flue gas through multiple sedimentation and centrifugal force, thereby solving the problem that dust and large particles of combustion products are difficult to remove;
[0016] (2) The utility model uses a water inlet pipe, a nozzle, an annular through-tube and a movable ring in cooperation with a driving motor and a driving gear. The driving motor drives the rotating rod to reciprocate at a fixed time, and then drives the driving gear to drive the movable ring to reciprocate through the engagement of teeth, so that the hole inside the movable ring coincides with the pipe of the nozzle, and then clean water is passed from the water inlet pipe through the annular through-tube into the nozzle for spraying and cooling. At the same time, the temperature inside the sealed shell is quickly reduced, and large sparks are prevented from burning inside and damaging the internal parts of the dust removal and fire-blocking device, thereby increasing the service life of the parts of the dust removal and fire-blocking device. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The utility model is further described below in conjunction with the accompanying drawings.
[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0019] Figure 2 It is a schematic diagram of the plane structure of the utility model;
[0020] Figure 3The utility model Figure 2 A magnified schematic diagram of the structure in Figure 1.
[0021] In the figure: 1, ash hopper; 2, lower sealing plate of swirl device; 3, upper sealing plate of swirl device; 4, flue gas swirl device; 5, flow blocker; 6, accelerating tube; 7, flow diffuser; 8, blocking device; 9, sealing shell; 10, smoke inlet; 11, smoke outlet; 12, ring plate; 13, movable ring; 14, steel ball; 15, driving gear; 16, rotating rod; 17, driving motor; 18, water inlet pipe; 19, annular through pipe; 20, nozzle. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] Embodiment 1
[0024] like Figure 1 and Figure 2 As shown, the utility model is a novel pre-dust removal and fire-blocking device, including an ash hopper 1, a sealed shell 9 is installed on the top of the ash hopper 1, a smoke inlet 10 is installed at the bottom of the outer wall of the sealed shell 9, smoke enters the interior of the sealed shell 9 from the smoke inlet 10, large particles and particles with sparks settle in the ash hopper 1 by gravity, and a cyclone device lower sealing plate 2 and a cyclone device upper sealing plate 3 are fixed on the inner wall of the sealed shell 9 from bottom to top, and a smoke cyclone device 4 is installed between the cyclone device lower sealing plate 2 and the cyclone device upper sealing plate 3. The smoke after the initial sedimentation passes through the smoke cyclone device 4 and the action of the centrifugal force to separate the smoke in the smoke. Larger particles and ignition particles are subjected to secondary dust removal, and at the same time, the flue gas is rotated and accelerated, so that the flue gas after the secondary dust removal enters the upper cavity through the flue gas cyclone device 4. A baffle 5 is installed on the top of the upper cavity of the flue gas cyclone device 4. The baffle 5 is located inside the sealed shell 9. The baffle 5 is a closing device, which increases the outlet flow rate, so that dust particles accumulate in the cavity part, resulting in an increase in dust concentration inside the cavity, an increase in the probability of collision and adhesion between dust particles, and thus new large particles accumulate in the cavity. Excessive dust accumulation will fall into the flue gas cyclone device 4 and slide into the ash storage hopper 1 through the gaps between the blades in the flue gas cyclone device 4;
[0025] At the same time, after three dust removals, the flue gas is accelerated by the accelerating tube 6 at the top of the baffle 5 outlet, and then enters the cavity at the top through the diffuser 7. Several blocking devices 8 are installed inside the sealed shell 9, and cavities of the same distance are left between the several blocking devices 8. The newly entered flue gas after three dust removals forms a turbulent flow with the flue gas that collides with the blocking device 8 and returns, thereby forming a new dust accumulation area. When the dust in the new dust accumulation area accumulates to a certain weight, it will fall into the cavity between the flue gas cyclone device 4 and the baffle 5, thereby completing the fourth dust removal and spark extinguishing. After a small amount of escaping large particles and particles with sparks are processed by multiple blocking devices 8, they are discharged into the next process through the smoke outlet 11 at the top of the sealed shell 9.
[0026] Embodiment 2
[0027] Based on the first embodiment, Figure 1 , Figure 2 ,and Figure 3 As shown, this embodiment proposes a technical solution to prevent the internal temperature of the sealed housing 9 from being too high, thereby affecting the service life of the internal parts of the dust removal and fire arresting device;
[0028] Specifically, a ring plate 12 is installed inside the sealing shell 9, the ring plate 12 is located below the lower sealing plate 2 of the cyclone device, and a plurality of nozzles 20 distributed in an annular array are installed on the inner surface of the ring plate 12, a movable ring 13 is installed inside the ring plate 12, and the movable ring 13 rotates inside the ring plate 12 through a plurality of steel balls 14 on the top, and a plurality of holes are opened inside the movable ring 13, and the size of the holes is consistent with the size and number of the nozzle 20 pipeline, and an annular through pipe 19 is installed inside the ring plate 12, and a water inlet pipe 18 penetrating the side wall of the sealing shell 9 is installed on the side wall of the annular through pipe 19;
[0029] A card plate is installed at the bottom of the movable ring 13, and a driving gear 15 is installed on the inner side wall of the card plate. The teeth of the driving gear 15 are engaged with the card plate at the bottom of the movable ring 13. A rotating rod 16 is installed through the center of the driving gear 15. The top of the rotating rod 16 is installed at the output end of the driving motor 17. The driving motor 17 can be adjusted to make the driving motor 17 rotate forward and reverse, thereby driving the rotating rod 16 to make the driving gear 15 reciprocate, driving the movable ring 13 to rotate so that the hole can adjust the position, which is convenient for controlling the spraying amount and water outlet speed of the nozzle 20;
[0030] The process of the embodiment of the utility model is as follows: the driving motor 17 drives the rotating rod 16 to perform reciprocating motion at a regular interval, and then drives the driving gear 15 to drive the movable ring 13 to move back and forth through the engagement of the teeth, so that the hole inside the movable ring 13 coincides with the pipe of the nozzle 20, and then clean water is passed from the water inlet pipe 18 through the annular through pipe 19 into the nozzle 20 for spraying and cooling, so that the temperature inside the sealed shell 9 drops rapidly, and large sparks are prevented from burning inside to damage the internal parts of the dust removal and fire-blocking device, thereby increasing the service life of the parts of the dust removal and fire-blocking device.
[0031] The working principle of the utility model is as follows: the flue gas is introduced into the interior of the sealed shell 9 from the smoke inlet 10. In order to prevent the internal temperature of the dust removal and fire-blocking device from being too high when the dust removal and fire-blocking device are working, and to prevent large particles of sparks from burning inside and damaging the internal parts of the dust removal and fire-blocking device, the driving motor 17 drives the rotating rod 16 to reciprocate regularly, and then drives the driving gear 15 to drive the movable ring 13 to move back and forth through the engagement of the teeth, so that the holes inside the movable ring 13 coincide with the pipe of the nozzle 20, and then clean water is introduced into the nozzle 20 from the water inlet pipe 18 through the annular through pipe 19 for spraying and cooling, and large particles and particles with sparks are settled in the ash storage hopper 1 by gravity. After the initial sedimentation, the flue gas passes through the flue gas cyclone device 4 and the centrifugal force to remove the larger particles and the ignition particles in the flue gas for a second time, and at the same time, the flue gas is accelerated by rotation to make the secondary The flue gas after dust removal enters the upper cavity through the flue gas cyclone device 4. After the action of the baffle 5, the dust particles will accumulate in the cavity part, resulting in an increase in the dust concentration inside the cavity. The probability of collision and adhesion between the dust particles increases, thereby forming new large particles that accumulate in the cavity. Too much dust accumulation will fall into the flue gas cyclone device 4, and slide into the ash storage hopper 1 through the gaps between the blades in the flue gas cyclone device 4. The flue gas after three dust removals forms a turbulent flow with the flue gas that collides with the blocking device 8 and returns, thereby forming a new dust accumulation area. When the dust in the new dust accumulation area accumulates to a certain weight, it will fall into the cavity between the flue gas cyclone device 4 and the baffle 5, thereby completing the fourth dust removal and spark extinguishing. After a small amount of escaped large particles and particles with sparks are processed by multiple blocking devices 8, they are discharged into the next process through the smoke outlet 11 at the top of the sealing shell 9.
[0032] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.
Claims
1. A new type of pre-dust removal and fire-blocking device, It is characterized in that It comprises: an ash storage hopper (1), a sealing shell (9) being installed on the top of the ash storage hopper (1); The inner wall of the sealing housing (9) is provided with a lower sealing plate (2) of a cyclone device; A flue gas cyclone device (4) is installed on the top of the lower sealing plate (2) of the cyclone device; An upper sealing plate (3) of the cyclone device is installed on the top of the smoke cyclone device (4); A baffle (5) is installed on the inner wall of the sealed housing (9); An accelerating tube (6) is installed on the top of the baffle (5); A diffuser (7) is installed on the top of the accelerating tube (6); A plurality of blocking devices (8) are installed on the inner wall of the sealing shell (9).
2. According to the novel pre-dust removal and fire arresting device of claim 1, It is characterized in that A smoke inlet (10) is provided at the bottom of the side wall of the sealed shell (9), and a smoke outlet (11) is provided at the top of the side wall of the sealed shell (9).
3. According to the novel pre-dust removal and fire arresting device of claim 1, It is characterized in that The inner wall of the sealing shell (9) is installed with a ring plate (12), the ring plate (12) is located below the lower sealing plate (2) of the swirl device, and the inner surface of the ring plate (12) is provided with a plurality of nozzles (20), the nozzles (20) are distributed in a circular array on the inner surface of the ring plate (12).
4. According to the novel pre-dust removal and fire arresting device of claim 3, It is characterized in that A movable ring (13) is provided inside the ring plate (12), a plurality of holes are provided at the center of the movable ring (13), and a plurality of steel balls (14) are installed on the top of the movable ring (13).
5. According to the novel pre-dust removal and fire arresting device of claim 4, It is characterized in that A clamping plate is installed at the bottom of the movable ring (13), and a driving gear (15) is installed on the side wall of the clamping plate of the movable ring (13). The driving gear (15) is meshed with the clamping plate of the movable ring (13) through teeth.
6. A novel pre-dust removal and fire-blocking device according to claim 5, It is characterized in that A rotating rod (16) is installed through the center of the driving gear (15), and a driving motor (17) is installed on the top of the rotating rod (16).
7. A novel pre-dust removal and fire-blocking device according to claim 3, It is characterized in that An annular through pipe (19) is installed inside the ring plate (12), a water inlet pipe (18) is installed on the side wall of the annular through pipe (19), and the water inlet pipe (18) penetrates the side wall of the sealing shell (9).