Radioactive source on-line monitoring device

Abstract

The utility model relates to the technical field of cement production, in particular to a radioactive source on-line monitoring device. According to the technical scheme, the device comprises a top disc, a conical cap, a cover barrel and a barrel body, a partition plate is fixed to the middle of the interior of the barrel body, a base is fixed to the middle of the upper end face of the partition plate, a rotary disc is rotationally installed in a notch in the upper end of the base, assembly openings are formed in the lower ends of the two sides of the barrel body, and detection boxes are slidably installed in the assembly openings; the cover cylinder is fixed to an opening in the upper end of the cylinder body, a feeding pipe is installed in the middle of the cover cylinder in a penetrating mode, the lower end of the feeding pipe corresponds to the rotary disc, the top disc is located on the upper side of the cover cylinder, a sleeve is installed in the middle of the lower end face of the cover cylinder in a penetrating mode, and the lower end of the sleeve is connected to the outer side of the feeding pipe in a sleeving mode. The raw material screening device has the advantages that the screening mechanism is additionally arranged, small-particle raw materials are prevented from entering the device to be blocked to influence subsequent detection results, double-channel synchronous detection is avoided, and the detection results are prevented from being influenced by damage of a single channel.

Description

Technical Field

[0001] The utility model relates to the technical field of cement production, in particular to an online monitoring device for a radioactive source. Background Art

[0002] The production process of silicate cement is representative in cement production. It uses limestone and clay as the main raw materials, which are crushed, batched, and ground into raw materials, and then fed into cement kilns to calcine into clinker, and then the clinker is ground with an appropriate amount of gypsum. The natural raw materials of cement have a certain degree of radioactivity. Now with the development of industry, various waste residues are used in building materials. When industrial waste residues such as steel slag and fly ash are added, which may increase the content of radioactive nuclides in cement, and cement is widely used in civil buildings, the high radiation level in each room where humans live will affect people's health.

[0003] During cement production, it is necessary to test the radioactivity of raw materials to ensure that the finished products meet the safety standards of production. The existing testing devices are not convenient for screening raw materials, and the uneven distribution of large and small particles can easily affect the quality of testing. At the same time, small particles of raw materials can easily get stuck inside the testing equipment, affecting the quality of subsequent testing. In addition, the existing testing devices have a single testing channel, and if the equipment is damaged, it will affect the test results. Utility Model Content

[0004] The purpose of the utility model is to provide an online monitoring device for a radioactive source, which has the advantages of adding a screening mechanism to prevent small particles of raw material from entering the equipment and getting stuck, affecting subsequent detection results, and dual-channel synchronous detection, avoiding the effects of damage to a single channel on the detection results, and solving the problems in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a radioactive source online monitoring device, comprising a top plate, a cone cap, a cover cylinder and a cylinder body, a partition is fixed in the middle of the interior of the cylinder body, a base is fixed in the middle of the upper end surface of the partition, and a turntable is rotatably installed in the upper end recess of the base, assembly openings are opened at the lower ends of both sides of the cylinder body, and a detection box is slidably installed in the assembly openings, the cover cylinder is fixed at the upper end opening of the cylinder body, a material feeding pipe is installed through the middle of the cover cylinder, and the lower end of the material feeding pipe corresponds to the turntable, the top plate is located on the upper side of the cover cylinder, a sleeve is installed through the middle of the lower end surface of the cover cylinder, and the lower end of the sleeve is sleeved on the outside of the material feeding pipe, screening openings are distributed in a circular array on the inner side of the top plate, and the lower end of the screening opening corresponds to the upper end recess of the cover cylinder, and the cone cap is located on the upper side of the top plate.

[0006] When using an online monitoring device for radioactive sources in the technical solution, an operator starts the device through an external control device, introduces cement raw material through the top of the top plate, disperses the raw material outward through the cone cap, and screens the raw material through the screening port of the top plate. Small particles of raw material fall into the recess on the upper side of the cover tube through the screening port for storage, and large particles of raw material are guided to the feed pipe through the sleeve. After passing through the feed pipe, the raw material falls to the upper side of the turntable, and the built-in motor of the base is started to drive the turntable to rotate. During the rotation of the turntable, the raw material on the upper side is tilted by the baffle bar and unloaded from the discharge port into the corresponding detection box, and radiation detection is performed through the radioactive material detection sensor built into the detection box.

[0007] Preferably, a foot pad is fixed on the outer side of the lower end surface of the cylinder, and a total of four foot pads are provided, and the four foot pads are distributed in a circular array, and an anti-skid pad is fixed on the lower end of the foot pad. The cylinder is placed and supported by the foot pad, and the anti-skid pad increases friction and ensures the stability of support.

[0008] Preferably, a baffle is fixed inside the recess at the upper end of the base, and the baffle is in contact with the upper end surface of the turntable, and the two ends of the baffle correspond to the material openings on both sides. During the rotation of the turntable, the baffle completes the inclined unloading through the baffle, so that the raw material is discharged from the material openings on both sides.

[0009] Preferably, both sides of the partition are provided with feed openings, and the upper side of the feed openings corresponds to the feed openings on both sides of the base recess, and the lower side of the feed openings corresponds to the detection box. The raw materials discharged from the feed openings on both sides of the base are discharged into the corresponding detection boxes from the feed openings.

[0010] Preferably, a fixing frame is fixed inside the feeding tube, a support rod is fixed on the upper end of the fixing frame, and the upper end of the support rod is fixed on the cone cap. The cone cap is fixedly supported by the fixing frame and the support rod.

[0011] Preferably, the diameter of the cone cap is adapted to the size of the top plate and the sleeve, and the cone cap corresponds to the screening opening. The cone-shaped arc surface of the cone cap is used to disperse the introduced raw material to the screening opening.

[0012] Preferably, the lower end of the sleeve is fixed in the upper end notch of the cover tube, and the inner side of the top plate is designed in a funnel shape. The sleeve is fixedly connected to the cover tube to achieve fixed support of the top plate, and the funnel-shaped design of the top plate is convenient for unloading.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the operator starts the device through an external control device and introduces the cement raw material through the top of the top plate. The raw material is dispersed outward through the cone cap and screened through the screening port of the top plate. Small particles of raw material fall into the recess on the upper side of the cover tube for storage through the screening port. Large particles of raw material are guided to the feed pipe through the sleeve. After passing through the feed pipe, the raw material falls to the upper side of the turntable. The built-in motor of the start base drives the turntable to rotate. During the rotation of the turntable, the raw material on the upper side is tilted by the baffle bar and unloaded from the discharge port into the corresponding detection box. Radiation detection is performed through the built-in radioactive material detection sensor in the detection box. The device has a simple structure and is easy to operate. The additional screening mechanism is convenient for screening large and small particles of raw material to avoid jamming caused by small particles of raw material entering the detection mechanism and preventing subsequent detection quality from being affected by unclean discharge. At the same time, dual-channel detection is used to avoid the phenomenon of unusability and low detection accuracy caused by damage to a single detection mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the cover tube of the utility model;

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the cylinder of the utility model.

[0018] In the figure: 1. top plate; 2. cone cap; 3. cover cylinder; 4. cylinder body; 5. detection box; 6. foot pad; 7. screening port; 8. sleeve; 9. fixing frame; 10. support rod; 11. feeding pipe; 12. base; 13. assembly port; 14. discharge port; 15. partition; 16. turntable; 17. baffle. DETAILED DESCRIPTION

[0019] 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 in 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.

[0020] Embodiment 1

[0021] See also Figures 1 to 4The utility model provides an embodiment: an online monitoring device for a radioactive source, comprising a top plate 1, a cone cap 2, a cover tube 3 and a cylinder body 4, a partition 15 is fixed at the middle of the inner part of the cylinder body 4, a base 12 is fixed at the middle of the upper end surface of the partition 15, and a turntable 16 is rotatably installed in the upper end recess of the base 12, assembly openings 13 are opened at the lower ends of both sides of the cylinder body 4, and a detection box 5 is slidably installed in the assembly opening 13, the cover tube 3 is fixed at the upper end opening of the cylinder body 4, a feeding pipe 11 is installed through the middle of the cover tube 3, and the lower end of the feeding pipe 11 corresponds to the turntable 16.

[0022] Furthermore,

[0023] A foot pad 6 is fixed to the outer side of the lower end surface of the cylinder 4. There are four foot pads 6 in total, and the four foot pads 6 are distributed in a circular array. An anti-skid pad is fixed to the lower end of the foot pad 6. The placement support of the cylinder 4 is achieved through the foot pad 6. The anti-skid pad increases friction and ensures the stability of the support.

[0024] Furthermore,

[0025] A baffle 17 is fixed inside the recess at the upper end of the base 12, and the baffle 17 fits the upper end surface of the turntable 16. The two ends of the baffle 17 correspond to the material openings on both sides respectively. During the rotation of the turntable 16, the baffle 17 completes the inclined unloading, so that the raw material is discharged from the material openings on both sides.

[0026] Furthermore,

[0027] Both sides of the partition 15 are provided with a feed opening 14, and the upper side of the feed opening 14 corresponds to the feed openings on both sides of the recess of the base 12, and the lower side of the feed opening 14 corresponds to the detection box 5. The raw materials discharged from the feed openings on both sides of the base 12 are discharged from the feed opening 14 into the corresponding detection box 5.

[0028] Embodiment 2

[0029] See also Figures 1 to 4 The utility model provides an embodiment: an online monitoring device for a radioactive source, comprising a top plate 1, a cone cap 2, a cover tube 3 and a cylinder body 4, wherein the top plate 1 is located on the upper side of the cover tube 3, a sleeve 8 is installed through the middle of the lower end surface of the cover tube 3, and the lower end of the sleeve 8 is sleeved on the outer side of the feeding pipe 11, and screening ports 7 are distributed in a circular array on the inner side of the top plate 1, and the lower end of the screening port 7 corresponds to the recess at the upper end of the cover tube 3, and the cone cap 2 is located on the upper side of the top plate 1.

[0030] Furthermore,

[0031] A fixing frame 9 is fixed inside the feeding tube 11 , a support rod 10 is fixed to the upper end of the fixing frame 9 , and the upper end of the support rod 10 is fixed on the cone cap 2 , and the cone cap 2 is fixedly supported by the fixing frame 9 and the support rod 10 .

[0032] Furthermore,

[0033] The diameter of the cone cap 2 is matched with the size of the top plate 1 and the sleeve 8 , and the cone cap 2 corresponds to the screening opening 7 . The conical arc surface of the cone cap 2 is used to disperse the introduced raw material to the screening opening 7 .

[0034] Furthermore,

[0035] The lower end of the sleeve 8 is fixed in the upper end recess of the cover tube 3. The inner side of the top plate 1 is designed in a funnel shape. The cover tube 3 is fixedly connected to the sleeve 8 to achieve fixed support of the top plate 1. The funnel-shaped design of the top plate 1 is convenient for unloading.

[0036] During operation of the utility model, an external power supply is connected, and the operator starts the device through an external control device, and the cement raw material is introduced through the top of the top plate 1, and the raw material is dispersed outward through the cone cap 2. The raw material is screened through the screening port 7 of the top plate 1, and small particles of raw material fall into the upper recess of the cover tube 3 through the screening port 7 for storage, and large particles of raw material are guided to the feed pipe 11 through the sleeve 8. After passing through the feed pipe 11, the raw material falls to the upper side of the turntable 16, and the built-in motor of the start base 12 drives the turntable 16 to rotate. During the rotation of the turntable 16, the raw material on the upper side is tilted by the baffle bar 17 to be discharged from the discharge port 14 and falls into the corresponding detection box 5, and radiation detection is performed through the built-in radioactive material detection sensor of the detection box 5.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A radioactive source online monitoring device, comprising a top plate (1), a cone cap (2), a cover cylinder (3) and a cylinder body (4), characterized in that: A partition (15) is fixed in the middle of the interior of the cylinder (4), a base (12) is fixed in the middle of the upper end surface of the partition (15), and a turntable (16) is rotatably installed in the upper end recess of the base (12), both lower ends of the cylinder (4) are provided with assembly openings (13), and a detection box (5) is slidably installed in the assembly openings (13), the cover cylinder (3) is fixed at the upper end opening of the cylinder (4), and the middle of the cover cylinder (3) passes through the installation opening A material feeding pipe (11) is provided, and the lower end of the material feeding pipe (11) corresponds to a rotating disk (16); the top plate (1) is located on the upper side of the cover cylinder (3); a sleeve (8) is installed through the middle of the lower end surface of the cover cylinder (3), and the lower end of the sleeve (8) is sleeved on the outer side of the material feeding pipe (11); screening openings (7) are distributed in an annular array on the inner side of the top plate (1), and the lower ends of the screening openings (7) correspond to the recesses on the upper end of the cover cylinder (3); and the cone cap (2) is located on the upper side of the top plate (1).

2. The online monitoring device for a radioactive source according to claim 1, characterized in that: A foot pad (6) is fixed to the outer side of the lower end surface of the cylinder (4), and a total of four foot pads (6) are provided, and the four foot pads (6) are distributed in a ring array, and an anti-slip pad is fixed to the lower end of the foot pad (6).

3. The online monitoring device for a radioactive source according to claim 1, characterized in that: A baffle (17) is fixed inside the recess at the upper end of the base (12), and the baffle (17) fits the upper end surface of the turntable (16), and the two ends of the baffle (17) correspond to the material openings at both sides respectively.

4. The online monitoring device for a radioactive source according to claim 1, characterized in that: Both sides of the partition plate (15) are provided with feed openings (14), and the upper side of the feed openings (14) corresponds to the feed openings on both sides of the recess of the base (12), and the lower side of the feed openings (14) corresponds to the detection box (5).

5. The online monitoring device for a radioactive source according to claim 1, characterized in that: A fixing frame (9) is fixed inside the feeding pipe (11), a support rod (10) is fixed at the upper end of the fixing frame (9), and the upper end of the support rod (10) is fixed on the cone cap (2).

6. The online monitoring device for a radioactive source according to claim 1, characterized in that: The diameter of the cone cap (2) is matched to the size of the top plate (1) and the sleeve (8), and the cone cap (2) corresponds to the screening opening (7).

7. The online monitoring device for a radioactive source according to claim 1, characterized in that: The lower end of the sleeve (8) is fixed in the upper end recess of the cover tube (3), and the inner side of the top plate (1) is designed in a funnel shape.

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