Completely-sealed rotary distributing machine for silo

Abstract

Water storage sealing grooves are formed in the edges of an inner ring annular discharging opening and an outer ring annular discharging opening of the silo top of the silo, the annular tracks of the inner ring and the outer ring of the lower portion of a rotary distributing machine body are each fixedly connected with a sealing rotary dust cover, and the edges of the sealing rotary dust covers stretch into the water storage sealing grooves. The rollers are tightly attached to the bottom of the water storage sealing groove; the sealed rotary dustproof cover body is provided with an opening corresponding to the discharge port of the rotary material distributor body; a dust removal type pressure relief device protruding upwards is arranged on the upper portion of a discharging opening of the rotary distributing machine body. According to the full-closed rotary distributing machine for the silo, provided by the invention, the silo is fully closed, so that the problem of unorganized discharge is solved; the dust removal type pressure relief opening with a plurality of layers of filtering dust removal nets or dust removal cloth bags solves the pressure relief problem of pressure generated by downward movement of materials during ore unloading, and ensures that the purposes of clean production and environmental protection standard reaching are achieved.

Description

Technical Field

[0001] The invention relates to a rotary material distributor, in particular to a fully sealed rotary material distributor for a silo, belonging to the technical field of rotary material distributors for silos. Background Art

[0002] Silo rotary spreading machine is mainly used in large coal storage silos in thermal power plants, coal mines, docks, chemical industry and other fields to achieve uniform distribution of materials. It can improve the volume utilization rate of the silo and achieve uniform and continuous rise of materials until the silo is full. In addition, when several silos are used together, it can also achieve the matching of good and bad coal types, improve the comprehensive utilization rate of coal quality, and enhance the overall economic benefits of the power plant.

[0003] The working principle of the silo rotary material distributor is to transport the material into the inverted tee through the belt conveyor, and the material falls into the reversible belt conveyor through the inverted tee. The belt conveyor unloads the material to the outer ring when it rotates forward, and unloads the material to the inner ring when it rotates reversely. The material is unloaded into the inner and outer annular grooves of the silo through the head and tail funnels at both ends of the belt conveyor, realizing uniform distribution of the material into the silo.

[0004] The material is distributed to the silo through the inner and outer ring feed ports. This type of distribution makes full use of the silo volume and fills the silo as much as possible. However, due to the relative rotational movement, the discharge ports at both ends of the rotary distributor move relative to the inner and outer ring feed ports on the silo top, making it difficult to seal. When the rotary distributor discharges material to a certain point of the inner or outer ring feed port on the silo top, all other feed port locations except the discharge point become pressure relief ports. The pressure relief requirements of the silo determine that the inner and outer ring feed ports cannot be completely closed.

[0005] There are also existing technologies that use simple structures to try to achieve a fully sealed rotating cloth for the silo. The common practice is to add a circle of rubber around the body frame for simple sealing. This solution effectively reduces the escape of dust, but there is a gap between the rubber and the silo body, and there is long-term friction with the silo body, resulting in serious wear and deformation. If it is not replaced in time, a large amount of dust will escape, causing serious environmental pollution, and it is difficult to take into account pressure relief. Summary of the invention

[0006] The purpose of the present invention is to provide a fully sealed rotary material distributor for a silo to solve the above technical problems.

[0007] The present invention adopts the following technical solutions:

[0008] A fully sealed rotary feeder for a silo, wherein the edges of the inner and outer annular discharge ports of the silo roof are both provided with water storage sealing grooves 2, and a sealed rotating dust cover 3 is fixedly connected to the inner and outer annular tracks of the lower part of the rotary feeder body 6, the edge of the sealed rotating dust cover 3 extends into the water storage sealing groove 2, and is connected to a group of rollers 302, and the rollers 302 are close to the bottom of the water storage sealing groove 2; the sealed rotating dust cover 3 has an opening corresponding to the discharge port of the rotary feeder body 6; the upper part of the discharge port of the rotary feeder body 6 is provided with an upwardly protruding dust removal pressure relief device 4.

[0009] Preferably, a connecting flange 303 is provided at the opening corresponding to the discharge port of the rotary material distributor body 6 .

[0010] Preferably, a rotary sealing device 1 is provided at the feed inlet of the rotary material distribution machine body 6 .

[0011] Preferably, the dust removal pressure relief device 4 is provided with multiple layers of filtering dust removal nets or dust removal bags.

[0012] Furthermore, a dust storage tank which can be cleaned regularly or irregularly is provided below the dust removal pressure relief device 4 .

[0013] Preferably, a dust cleaning device 5 is provided below the conveyor belt inside the rotary material distributor body 6.

[0014] Preferably, the gap between the sealing rotating dustproof cover 3 and the upper edge of the water storage sealing groove 2 is 5-15 cm.

[0015] The beneficial effects of the present invention are:

[0016] 1) The fully enclosed silo rotary feeder provided realizes the full closure of the silo, which solves the problem of unorganized emissions;

[0017] 2) The dust-removal pressure relief port with multi-layer filtering dust removal nets or dust removal bags solves the pressure relief problem caused by the downward movement of materials during unloading, ensuring the realization of clean production and environmental protection standards;

[0018] 3) The water storage sealing groove, the sealing rotating dust cover, and the connecting flange set at the edge of the sealing rotating dust cover ensure that the entire structure has high rigidity and strong resistance to deformation and impact. Compared with the existing simple sealing structure, it truly realizes stable and safe production under full sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a vertical layout diagram of the fully sealed rotary material placing boom of the silo of the present invention.

[0020] Figure 2 It is a plan view of the fully sealed rotary material placing machine for silos of the present invention.

[0021] Figure 3 It is a plan view of four water storage sealing grooves.

[0022] Figure 4 It is a schematic diagram of the planar structure of a closed rotating dust cover.

[0023] Figure 5 It is a cross-sectional view of the assembly of the water storage sealing groove and the closed rotating dust cover body.

[0024] In the figure, 1. rotary sealing device, 2. water storage sealing groove, 3. sealed rotary dust cover body, 4. dust removal pressure relief port, 5. dust cleaning device, 6. rotary feeder body, 7. track, 201. water seal, 301. closed rotary dust cover body, 302. roller, 303. connecting flange. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] The present embodiment specifically provides a fully enclosed and environment-friendly rotary material placing machine for a silo, and applies it to material placing in a silo, especially a high-storage silo, so as to achieve material placing operations in the silo under completely sealed conditions and solve the problem of a large amount of dust escaping from the silo roof and serious environmental pollution during material placing, so that there is no dust emission during material placing in the silo, the air is clean, and environmental protection standards are met.

[0027] The specific technical solutions are as follows:

[0028] The currently commonly used open rotary concrete placing machine is changed into a fully enclosed rotary concrete placing machine. A rotary sealing device is set at the feeding port of the fully enclosed rotary concrete placing machine to ensure that the fully enclosed rotary concrete placing machine is completely sealed when receiving materials without dust escaping.

[0029] The fully enclosed rotary concrete placing machine is arranged on the top of the silo, with the rotation center coinciding with the silo center. It also uses a circular track to travel, and is equipped with inner and outer ring discharge ports. The silo feed port and the fully enclosed rotary concrete placing machine's discharge port are improved as follows:

[0030] a) Set four full circles of water storage sealing grooves 2 on the edges of the annular feed openings in the inner and outer circles of the silo, such as Figure 1 shown.

[0031] b) A closed rotating dustproof cover 3 is provided at the discharge port of the fully enclosed rotary feeder. The cover completely closes the inner and outer annular feed ports on the top of the silo, and a stopper with a roller is inserted into the water storage sealing groove 2 to ensure a tight side seal.

[0032] c) The cover body 3 is fixed on the fully enclosed rotary concrete placing machine and rotates together with the fully enclosed rotary concrete placing machine.

[0033] d) A dust-removing pressure relief port 4 with a multi-layer filtering dust removal net or dust removal bag is arranged above the discharge port at both ends of the fully enclosed rotary concrete placing machine to ensure dust removal while relieving pressure and meet emission standards.

[0034] e) The dust removal pressure relief device 4 of the fully enclosed rotary material placing machine is equipped with an ash storage tank, which can be cleaned regularly to ensure smooth and reliable operation of the equipment.

[0035] The main components of the silo fully enclosed rotary feeder are: 1-rotating sealing device, 2-four full-circle water storage sealing grooves on the silo top, 3-enclosed rotary dust cover (with a stopper with roller), 4-dust removal pressure relief port with multi-layer filter dust removal net or dust removal bag, 5-dust cleaning device, 6-fully enclosed rotary feeder body, etc. Figure 1 , Figure 2 shown.

[0036] The following is combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 This embodiment is further described in detail:

[0037] Different from most open concrete placing booms currently available, the silo fully enclosed rotary concrete placing boom adopts a fully enclosed structure:

[0038] like Figure 1 As shown, the feed inlet is sealed by a rotary sealing device 1, and the fully enclosed rotary material distributor body 6 is a closed structure.

[0039] like Figure 4 As shown, the discharge port and the closed rotary dust cover body 6 are connected by a flange 303, which is also a closed structure.

[0040] like Figure 3 As shown, the four water storage sealing grooves and the closed rotating dust cover body are a full-circle annular structure, which can well adapt to the rotary motion and facilitate the realization of sealing.

[0041] like Figure 4 , Figure 5 As shown, the water storage sealing groove 2 completely surrounds the silo feed port, and the closed rotating dust cover 3 is completely buckled in the water storage sealing groove 2.

[0042] like Figure 5 As shown, a water seal 201 is used between the closed rotary dust cover 3 and the water storage sealing groove 2, and a complete seal is achieved between the silo and the silo fully enclosed rotary material distributor. The roller 302 is attached to the closed rotary dust cover 3, ensuring that the closed rotary dust cover 1 rotates under the drive of the silo fully enclosed rotary material distributor body.

[0043] The fully enclosed rotary silo placing machine can relieve the pressure of the silo while placing the materials.

[0044] like Figure 1 , Figure 2 As shown, the fully enclosed rotary material distribution machine of the silo is provided with a dust removal pressure relief port 4 at each unloading point at both ends, and the silo pressure is relieved while unloading, so as to ensure stable and reliable material distribution.

[0045] The fully enclosed rotary feeder for silos has the function of environmentally friendly dust removal.

[0046] The fully enclosed structure can ensure that dust does not spill out.

[0047] The pressure relief port is an environmentally friendly pressure relief port, and a dust removal pressure relief device 4 is provided, namely a multi-layer filtering dust removal net or a dust removal bag, which utilizes the bin pressure during unloading to filter and remove dust.

[0048] like Figure 1 As shown, a dust cleaning device 5 is arranged inside the fully enclosed rotary material distributor of the silo, which can clean the dust accumulated inside the equipment and ensure the reliable and clean operation of the equipment.

[0049] In this way, the silo fully enclosed rotary feeder realizes the full closure of the silo, which not only fully utilizes the silo volume, but also ensures that there is no dust emission in the silo area, the air is clean, and environmental protection standards are met.

[0050] In this embodiment, a dust storage tank is provided below the dust removal pressure relief device 4, which can be cleaned regularly or irregularly.

[0051] In this embodiment, a dust cleaning device 5 is provided below the conveyor belt inside the rotary material distributor body 6 .

[0052] In this embodiment, the gap between the sealing rotary dustproof cover 3 and the upper edge of the water storage sealing groove 2 is 5-15 cm.

[0053] The fully enclosed rotary feeder for silos provided in this embodiment realizes the full closure of silos, thus solving the problem of unorganized emissions; the dust removal pressure relief port with multi-layer filtering dust removal nets or dust removal bags solves the pressure relief problem caused by the downward movement of materials during ore unloading, thus ensuring the realization of clean production and environmental protection standards; the water storage sealing groove, the sealed rotating dust cover body, and the connecting flange arranged at the edge of the sealed rotating dust cover body and other structures ensure that the entire structure has high rigidity and strong resistance to deformation and impact. Compared with the existing simple sealing structure, it truly realizes stable and safe production under full sealing.

[0054] The above are preferred embodiments of the present invention. A person skilled in the art may make various changes or improvements on this basis. Without departing from the general concept of the present invention, these changes or improvements should fall within the scope of protection claimed by the present invention.

Claims

1. A fully sealed rotary material placing machine for silos, characterized by: The edges of the inner and outer annular discharge openings of the silo roof are both provided with water storage sealing grooves (2). A sealed rotary dust cover (3) is fixedly connected to the inner and outer ring tracks of the lower part of the rotary material distributor body (6); the edge of the sealed rotary dust cover (3) extends into the water storage sealing groove (2) and is connected to a group of rollers (302), and the rollers (302) are closely attached to the bottom of the water storage sealing groove (2); the sealed rotary dust cover (3) has an opening corresponding to the discharge port of the rotary material distributor body (6); The upper part of the discharge port of the rotary material distributor body (6) is provided with an upwardly protruding dust removal pressure relief device (4).

2. The fully sealed rotary material placing machine for silos according to claim 1, characterized in that: A connecting flange (303) is provided at the opening corresponding to the discharge port of the rotary material distributor body (6).

3. The fully sealed rotary material placing machine for silos according to claim 1, characterized in that: A rotary sealing device (1) is provided at the feed inlet of the rotary material distributor body (6).

4. The fully sealed rotary material placing machine for silos according to claim 1, characterized in that: The dust removal pressure relief device (4) is provided with multiple layers of filtering dust removal nets or dust removal bags.

5. The fully sealed rotary material placing machine for silos according to claim 4, characterized in that: An ash storage tank which can be cleaned regularly or irregularly is provided below the dust removal pressure relief device (4).

6. The fully sealed rotary material placing machine for silos according to claim 1, characterized in that: A dust cleaning device (5) is provided below the conveyor belt inside the rotary material distributor body (6).

7. The fully sealed rotary material placing machine for silos according to claim 1, characterized in that: The gap between the sealing rotating dustproof cover (3) and the upper edge of the water storage sealing groove (2) is 5-15 cm.

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