Empty bin dry powder sprayer

Abstract

An empty bin dry powder sprayer relates to the field of grain storage and comprises a climbing rod assembly and a powder sprayer arranged on the climbing rod assembly, the climbing rod assembly is used for tightly holding a temperature measuring rod in a granary and can move up and down along the temperature measuring rod, and the powder sprayer comprises a powder containing barrel and a plurality of nozzles arranged on the outer circular surface of the powder containing barrel; the included angle between the opening direction of the nozzle and the axial direction of the temperature measuring rod is 0-90 degrees, and the included angle is gradually reduced in the direction, away from the climbing rod assembly, of the nozzle. According to the utility model, the powder spraying head is fixed on the climbing rod assembly, so that the powder spraying head can move up and down along with the climbing rod assembly, and inert powder can be sprayed to spaces with different heights in a warehouse; the included angle between the nozzles and the axial direction of the temperature measuring rod is gradually reduced in the direction, away from the climbing rod assembly, of the nozzles, so that the different nozzles spray the inert powder in different directions, the coverage area of the inert powder in the warehouse is increased, and the uniformity of the inert powder in the warehouse is improved.

Description

Technical Field

[0001] The utility model relates to the field of grain storage, in particular to an empty-storage dry powder sprayer. Background Art

[0002] Empty warehouse pest control is an essential part of grain storage and preservation, which can effectively prevent stored grain from being infected by pests. This method is to use insecticides to kill and prevent insects in empty warehouses, packaging equipment, transportation vehicles, bedding, equipment, grain and oil processing plant workshops, etc. Long-term experiments have shown that carefully ensuring the pest control work in the warehouse before storage can significantly reduce the occurrence of stored grain pests. Therefore, empty warehouse pest control before grain is stored is a very important part of the grain storage process.

[0003] Among the agents used for empty warehouse pest control, food-grade inert powder has the characteristics of being green and environmentally friendly and having good control effects. As a food additive, food-grade inert powder has silicon dioxide as its main component. According to national industry standards, it can be added to granular or powdered foods to prevent raw grains or powdered foods from agglomerating and keeping them loose. The particle size of food-grade inert powder is about 5μm, which can be dispersed and suspended in the atmosphere to form an aerosol. Subsequently, the aerosol particles are sent into the gaps between grain piles through the difference in airflow pressure in the granary, so that they can better fall on or enter the internode membrane of the pests to achieve the effect of killing the pests.

[0004] At present, empty warehouse powder spraying still requires manual operation with protective equipment and entering the warehouse in person. On the one hand, there are certain health risks for operators staying in the warehouse for a long time. On the other hand, when spraying powder manually, how to evenly distribute the inert powder in the warehouse is highly dependent on the operator's powder spraying technology. In addition, the height of powder spraying during manual powder spraying is limited, especially there is less inert powder above the warehouse, and the uniformity of the inert powder distributed in the warehouse space is not good. Utility Model Content

[0005] The utility model aims to provide an empty silo dry powder sprayer to improve the uniformity of inert powder in the granary space when the empty silo is sprayed with powder.

[0006] In order to solve the above technical problems, the specific solution adopted by the utility model is: a dry powder sprayer for an empty silo, comprising a climbing rod assembly and a powder spraying head arranged on the climbing rod assembly, the climbing rod assembly is used to hold tightly on a temperature measuring rod in the granary and can move up and down along the temperature measuring rod, the powder spraying head comprises a powder cylinder and a plurality of nozzles arranged on the outer circumferential surface of the powder cylinder; the angle between the opening direction of the nozzle and the axial direction of the temperature measuring rod is 0-90 degrees, and the angle gradually decreases in the direction where the nozzle is away from the climbing rod assembly.

[0007] As a further optimization of the above technical solution, the powder container is an annular cylinder arranged around the temperature measuring rod.

[0008] As a further optimization of the above technical solution, the powder container is a strip-shaped container made of a flexible material.

[0009] As a further optimization of the above technical solution, the climbing pole assembly includes two climbing pole elements arranged opposite to each other, and an annular mounting plate is fixed to the lower end face of each climbing pole element. The openings of the two annular mounting plates are opposite to each other, and the powder cylinder is arranged on the lower plate surface of the mounting plate.

[0010] As a further optimization of the above technical solution, a plurality of clamping rings for restraining the powder container are arranged at intervals along the circumferential direction on the mounting plate.

[0011] As a further optimization of the above technical solution, the climbing pole assembly includes two climbing pole elements arranged opposite to each other, and there are two powder spraying heads which are respectively arranged at the bottom of the two climbing pole elements.

[0012] As a further optimization of the above technical solution, the outer cylindrical surface of the powder container serves as the injection surface, including a cylindrical surface and multiple conical surfaces distributed from top to bottom, the inclination angles of the multiple conical surfaces increase successively in the direction away from the cylindrical surface, and multiple nozzles are arranged on the cylindrical surface and the conical surface, and the axial direction of the nozzle is perpendicular to the cylindrical surface or the conical surface on which it is located.

[0013] As a further optimization of the above technical solution, a fixed plate is provided at the bottom of the climbing pole element, the powder container is arranged on the lower plate surface of the fixed plate, and an avoidance groove for the temperature measuring cable to pass through is opened on the fixed plate.

[0014] As a further optimization of the above technical solution, the fixing plate is fixedly connected to the lower end surface of one of the climbing rod elements, the lower end surface of the other climbing rod element is provided with a sliding block, and the fixing plate is provided with an arc-shaped sliding groove for sliding the sliding block.

[0015] As a further optimization of the above technical solution, the powder container is connected to a compressed air source.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] The utility model fixes a powder spraying head on a climbing rod assembly so that the powder spraying head can move up and down with the climbing rod assembly, and can spray inert powder to spaces of different heights in a warehouse; by setting the angle between the nozzle and the axial direction of the temperature measuring rod to gradually decrease in the direction in which the nozzle moves away from the climbing rod assembly, different nozzles can spray inert powder in different directions, thereby increasing the coverage area of ​​the inert powder in the warehouse, thereby improving the uniformity of the inert powder in the warehouse.

[0018] By connecting a compressed air source to the powder container to provide compressed air into the powder container, on the one hand, the compressed air can be used to clear the powder spraying head when it is blocked by powder, and on the other hand, the compressed air introduced into the powder spraying head can further promote the powder to be sprayed outward. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of Example 1;

[0020] Figure 2 It is a bottom view schematic diagram of the mounting plate and the powder spraying head in Example 1;

[0021] Figure 3 It is a schematic diagram of the angle between the nozzle opening direction and the axial direction of the temperature measuring rod;

[0022] Figure 4 It is a structural schematic diagram of Example 2;

[0023] Figure 5 It is a bottom view schematic diagram of the fixing plate and the powder spraying head in Example 2;

[0024] Figure 6 is a schematic diagram of the top view of the fixed plate in Example 2;

[0025] Figure 7 is a cross-sectional schematic diagram of the fixing plate in Example 2;

[0026] Figure 8 It is a structural schematic diagram of a climbing pole assembly;

[0027] Figure numerals: 1. temperature measuring rod, 2. climbing rod assembly, 201. climbing rod element, 3. mounting plate, 4. retaining ring, 5. powder spray head, 501. powder container, 502. nozzle, 6. handle, 7. powder supply trolley, 8. powder delivery pipe, 9. air delivery pipe, 10. fixing plate, 11. arc-shaped slide groove, 12. avoidance groove, 13. accommodating chamber, 14. slider. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further elaborated in detail below in conjunction with specific embodiments. The parts that are not described and disclosed in detail in the following embodiments of the present invention, such as the specific structure and control method of the pole climbing robot, should be understood as existing technologies known or should be known to those skilled in the art.

[0029] Example 1

[0030] like Figure 1 As shown, the utility model discloses an empty silo dry powder sprayer, including a climbing rod assembly 2 and a powder spraying head 5 arranged on the climbing rod assembly 2, the climbing rod assembly 2 is used to hold the temperature measuring rod 1 in the granary and can move up and down along the temperature measuring rod 1. The powder spraying head 5 is arranged at the bottom or top of the climbing rod assembly 2, and the climbing rod assembly 2 moves up and down along the temperature measuring rod 1 to drive the powder spraying head 5 to move up and down, so as to realize powder spraying operations at different heights in the granary. The climbing rod assembly 2 adopts a climbing rod robot of the prior art, and its structure, internal transmission relationship, control method, etc. are not repeated here.

[0031] The powder spray head 5 includes a powder container 501 and a plurality of nozzles 502 arranged on the outer circumference of the powder container 501. The angle between the opening direction of the nozzle 502 and the axial direction of the temperature measuring rod 1 is 0-90 degrees, and the angle gradually decreases along the direction in which the nozzle 502 is away from the climbing rod assembly 2. In order to further illustrate that the angle between the opening direction of the nozzle 502 and the axial direction of the temperature measuring rod 1 gradually decreases along the direction in which the nozzle 502 is away from the climbing rod assembly 2, as shown in FIG. Figure 3 As shown, the direction away from the climbing rod assembly 2 is vertically downward, and the angles between the opening direction of the nozzle 502 and the axial direction (i.e., the vertical direction) of the temperature measuring rod 1 are set to be a, b, and c from top to bottom, and the relationship between the specific angles is ∠a>∠b>∠c. By setting the angle between the nozzle and the axial direction of the temperature measuring rod to gradually decrease along the direction in which the nozzle is away from the climbing rod assembly, different nozzles spray the inert powder in different directions, increasing the coverage area of ​​the inert powder in the warehouse, thereby improving the uniformity of the inert powder in the warehouse.

[0032] Specifically, in this embodiment, the powder spraying head 5 is arranged at the bottom of the pole climbing robot. Figure 1 , 8 As shown, the climbing pole assembly 2 includes two climbing pole elements 201 arranged opposite to each other, one side of the two climbing pole elements 201 is connected in a hinged manner, and the other side is detachably connected. When the two climbing pole elements 201 are buckled together, they can hold the temperature measuring rod 1 tightly and move up and down along the temperature measuring rod 1. When it is necessary to remove it from the current temperature measuring rod 1 and transfer it to the next temperature measuring rod 1, just open one end of the detachable connection. Both climbing pole elements 201 are provided with walking wheels and drive motors. For the specific structure, please refer to the Chinese invention patent with application number 201711405521.5 and the name of a kind of adaptive pole diameter climbing robot.

[0033] like Figure 1 , 2 As shown, an annular mounting plate 3 is fixed to the lower end surface of each climbing rod element 201, and the openings of the two annular mounting plates 3 are opposite to each other, and the powder container 501 is arranged on the lower plate surface of the mounting plate 3. The mounting plate 3 and the lower end surface of the climbing rod element 201 can be fixed by bolt connection or welding. The mounting plates 3 are arranged as two opposite annular plates. On the one hand, a space for the temperature measuring rod 1 to pass through can be provided. On the other hand, when removing the sprayer from the temperature measuring rod 1, one end of the detachable connection of the two climbing rod elements 201 needs to be opened, and the two climbing rod elements 201 hinged to each other need to move relative to each other. The annular plates are arranged as two pieces to avoid interference with the relative movement of the two climbing rod elements 201.

[0034] A plurality of retaining rings 4 for restraining the powder barrel 501 are arranged at intervals along the circumferential direction on the mounting plate 3. The powder barrel 501 is an annular barrel arranged around the temperature measuring rod 1. The plurality of retaining rings 4 are fixed on the outside of the powder barrel 501 to fix the powder barrel 501 on the lower plate surface of the mounting plate 3. The outer circumferential surface of the annular barrel is the injection surface for setting the nozzle 502.

[0035] Furthermore, the powder container 501 is a strip-shaped tube made of a flexible material. The strip-shaped tube can be bent into a ring shape by inserting the strip-shaped tube into a plurality of circumferentially distributed clamping rings 4. The powder container 501 is configured to be made of a flexible material so that the sprayer can be conveniently stored after the use of the sprayer. At the same time, when the two climbing rod elements 201 hinged to each other move relative to each other, the powder container 501 made of a flexible material can also be deformed accordingly, thereby preventing the powder container 501 from interfering with the relative movement of the climbing rod elements 201.

[0036] The specific structure of the clamp ring 4 in this embodiment is the prior art, and a commercially available clamp or a metal ring can be selected. When in use, the clamp or the metal ring can be welded to the lower plate surface of the mounting plate 3.

[0037] The powder spray head 5 is connected to the powder supply trolley 7 through a powder conveying pipe 8. A through hole is provided on the mounting plate 3 for the powder conveying pipe 8 to pass through. A powder storage box is provided on the powder supply trolley 7. The process of the powder supply trolley 7 conveying inert powder to the powder spray head 5 is the same as that of the Venturi gas jet pump. Its working medium is air, which is supplied by a screw pump. When the working fluid flows through the Venturi, its speed increases and the pressure decreases, forming a vacuum at the throat, so that the powder is sucked in and evenly mixed with the working fluid, and then sprayed out from the powder spray head 5 through the powder conveying pipe 8.

[0038] The sprayer described in the utility model is used for spraying inert powder in a warehouse. During the spraying process, the powder spray head 5 may be blocked. Therefore, a compressed air source is also provided on the powder supply trolley 7 of the utility model. The powder container 501 of the powder spray head 5 is connected to the compressed air source. When the powder spray head 5 is blocked, it can be unblocked by compressed gas. On the other hand, the compressed gas introduced into the powder spray head 5 can further promote the inert powder to be sprayed outward.

[0039] The powder supply trolley 7 is provided with a handle 6 for conveniently pushing the powder supply trolley 7 so that the powder supply trolley 7 and the sprayer can be transferred in the warehouse.

[0040] Example 2

[0041] The overall structure of this embodiment is the same as that of embodiment 1, except that Figure 4-6 As shown, there are two powder spraying heads 5 in this embodiment, and the two powder spraying heads 5 are respectively arranged at the bottom of the two climbing rod elements 201.

[0042] The powder spray head 5 comprises a powder container 501 and a nozzle 502 arranged on the outer surface of the powder container 501. The outer surface of the powder container 501 is used as a spraying surface, and comprises a cylindrical surface and a plurality of conical surfaces distributed sequentially from top to bottom. The inclination angles of the plurality of conical surfaces increase sequentially in the direction away from the cylindrical surface. The cylindrical surface and the conical surface are provided with a plurality of nozzles 502, and the axial direction of the nozzle 502 is perpendicular to the cylindrical surface or the conical surface. Among them, the inclination angle of the conical surface refers to the angle between the conical surface and the cylindrical surface.

[0043] A fixed plate 10 is provided at the bottom of the climbing pole assembly 2, and the powder barrel 501 is a hard cylinder and is arranged on the lower plate surface of the fixed plate 10. Specifically, the powder barrel 501 is made of metal, and a mounting hole is provided on the fixed plate 10. The upper end of the powder barrel 501 is embedded in the mounting hole in an interference fit manner, and an avoidance groove 12 is provided on the fixed plate 10 for the temperature measuring rod 1 to pass through.

[0044] The fixing plate 10 is fixedly connected to the lower end surface of one climbing rod element 201, and a slider 14 is provided on the lower end surface of the other climbing rod element 201. The fixing plate 10 is provided with an arc-shaped slide groove 11 for the slider to slide. The setting of the arc-shaped slide groove 11 can prevent the fixing plate 10 from interfering with the mutual movement of the two climbing rod elements 201. Figure 7 As shown, the slider 14 arranged on the lower end surface of the climbing pole element 201 is an inverted T-shaped slider, which can limit the downward movement of the fixing plate 10 so that the fixing plate 10 remains horizontal on the lower end surface of the climbing pole element 201.

[0045] like Figure 7 As shown, there is one powder delivery pipe 8 connected to the powder supply box, and the powder outlet of the powder delivery pipe 8 is connected to two powder delivery branches, each of which is connected to a powder container 501 of a powder spray head 5. Similarly, there is one air delivery pipe 9 connected to the compressed air source, and the air outlet of the compressed air source is connected to two air delivery branches, each of which is connected to a powder container 501 of a powder spray head 5. An accommodating chamber 13 is provided in the fixing plate 10, and the powder delivery branch pipe and the air delivery branch pipe are both located in the accommodating chamber 13.

[0046] As another arrangement of the powder conveying pipe 8 and the air conveying pipe 9 , two powder conveying pipes 8 and air conveying pipes 9 are arranged on the powder supply trolley 7 , and each powder container 501 of the powder spraying head 5 is connected to one powder conveying pipe 8 and one air conveying pipe 9 .

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An empty-storage dry powder sprayer, characterized in that: The invention comprises a climbing rod assembly (2) and a powder spraying head (5) arranged on the climbing rod assembly (2); the climbing rod assembly (2) is used to hold tightly on a temperature measuring rod (1) in a granary and can move up and down along the temperature measuring rod (1); the powder spraying head (5) comprises a powder container (501) and a plurality of nozzles (502) arranged on the outer circumferential surface of the powder container (501); the angle between the opening direction of the nozzle (502) and the axial direction of the temperature measuring rod (1) is 0-90 degrees, and the angle gradually decreases along the direction in which the nozzle (502) is away from the climbing rod assembly (2).

2. The empty-storage dry powder sprayer according to claim 1, characterized in that: The powder container (501) is an annular container arranged around the temperature measuring rod (1).

3. The empty-storage dry powder sprayer according to claim 1, characterized in that: The powder container (501) is a strip-shaped container made of flexible material.

4. An empty-storage dry powder sprayer according to claim 2 or 3, characterized in that: The climbing pole assembly (2) comprises two climbing pole elements (201) arranged opposite to each other, and a ring-shaped mounting plate (3) is fixed to the lower end surface of each climbing pole element (201), the two ring-shaped mounting plates (3) have openings facing each other, and the powder container (501) is arranged on the lower plate surface of the mounting plate (3).

5. The empty-storage dry powder sprayer according to claim 4, characterized in that: A plurality of clamping rings (4) for restraining the powder container (501) are arranged at intervals along the circumferential direction on the mounting plate (3).

6. The empty-storage dry powder sprayer according to claim 1, characterized in that: The climbing pole assembly (2) comprises two climbing pole elements (201) arranged opposite to each other, and two powder spraying heads (5) are respectively arranged at the bottom of the two climbing pole elements (201).

7. The empty-storage dry powder sprayer according to claim 6, characterized in that: The outer cylindrical surface of the powder container (501) serves as a spraying surface, and includes a cylindrical surface and a plurality of conical surfaces distributed sequentially from top to bottom. The inclination angles of the plurality of conical surfaces increase sequentially in a direction away from the cylindrical surface. A plurality of nozzles (502) are arranged on the cylindrical surface and the conical surface. The axial direction of the nozzles (502) is perpendicular to the cylindrical surface or the conical surface.

8. The empty-storage dry powder sprayer according to claim 6, characterized in that: A fixing plate (10) is arranged at the bottom of the climbing rod element (201), the powder container (501) is arranged on the lower plate surface of the fixing plate (10), and an avoidance groove (12) for the temperature measuring cable to pass through is opened on the fixing plate (10).

9. The empty-storage dry powder sprayer according to claim 8, characterized in that: The fixing plate (10) is fixedly connected to the lower end surface of one climbing rod element (201), the lower end surface of the other climbing rod element (201) is provided with a sliding block, and the fixing plate (10) is provided with an arc-shaped sliding groove (11) for the sliding block to slide.

10. The empty-storage dry powder sprayer according to claim 1, characterized in that: The powder container (501) is connected to a compressed air source.

Images