CN108081460A - A configuration mechanism that is used for radiation protection concrete thick liquid of neutron research - Google Patents

Abstract

The invention relates to a configuration mechanism of radiation-proof concrete slurry for neutron research, which comprises a rack and a configuration barrel, wherein the upper part of the configuration barrel is provided with a particle feed inlet, the middle part of the configuration barrel is provided with a water injection port and a cement feed inlet, and the lower part of the configuration barrel is provided with a configuration outlet; the invention can independently feed the granular raw materials, can uniformly fall into the bottom of the configuration cylinder under the action of the stirring blades, can fully mix and stir the raw materials with cement and water by matching with the stirring rod designed at the bottom, and further can ensure that the granular raw materials in the prepared concrete slurry are basically kept uniform.

Description

A configuration mechanism for anti-radiation concrete slurry for neutron research

technical field

The invention relates to the field of radiation-proof material processing equipment used for neutron scientific research, in particular to a configuration mechanism for radiation-proof concrete slurry used for neutron research.

Background technique

Neutron science is a high-tech subject, which reflects the technological level of a country. Neutron science research includes many contents, such as neutron collision and fusion. Most of neutron science research is accompanied by radiation, so Radiation-proof materials will be used. Most of the existing neutron tests use special radiation-proof concrete for radiation protection. This radiation-proof concrete is added with various particles, such as copper particles, zinc particles and other heavy metal particles and sand particles. It is made by mixing specific cement, and the anti-radiation effect of the anti-radiation concrete is controlled by the content and uniformity of the distribution of the particles. Most of the existing concrete slurry configurations use a mixer to add the materials at one time, and then It is stirred and mixed through the spiral stirring part, and there is a big defect in the configuration of the radiation-proof concrete slurry by using the mixer of the existing concrete slurry configuration, and it is impossible to ensure that each particle is evenly distributed in the configured concrete slurry, and then It will cause some parts of the concrete blocks formed by this concrete slurry to have radiation-proof loopholes.

Contents of the invention

The purpose of the present invention is to provide a configuration mechanism for radiation-proof concrete slurry used in neutron research, which can feed the granular raw materials separately, and can evenly fall into the bottom of the configuration cylinder through the action of the stirring blade, and cooperate with the bottom The designed stirring rod can fully mix and stir the raw materials with cement and water, thereby ensuring that the granular raw materials in the prepared concrete slurry are basically kept uniform.

In order to achieve the above object, the technical solution adopted in the present invention is: a configuration mechanism for radiation-proof concrete slurry used in neutron research, which includes a frame (1) and a configuration cylinder (31) arranged on it, the described The upper part of the configuration cylinder (31) is uniformly provided with no less than 3 particle feed ports (32), the middle part is provided with a water injection port (33) and the cement feed port (34), and the lower part is provided with a configuration outlet (35), The configuration port (35) is connected to the delivery cylinder (3) through the delivery control valve (36), and a vertical stirring motor (39) is provided under the upper cover (38) of the configuration cylinder (31). , the bottom of the stirring motor (39) is connected with a stirring turntable (40), the side of the stirring turntable (40) is evenly provided with stirring blades (41), and the bottom is provided with a stirring lift rod (42 ), the bottom of the stirring lifting rod (42) is connected with a stirring lifting seat (43), and the surrounding of the stirring lifting seat (43) is uniformly provided with a stirring rod (44) inclined outwards and downwards. The height of the stirring rotary block (40) is between the particle feed port (32) and the water injection port (33).

Further, the bottom of the configuration cylinder (31) is hinged with a discharge rotary block (45), and the hinged part is located at the configuration outlet (35), the discharge rotary block (45) is an elastic block, and There is a discharge jacking cylinder (46) linked to the bottom of the other side opposite to the hinge, and the discharge jacking cylinder (46) is arranged on the frame (1) and its stretch rod passes through the configuration cylinder ( 31), and the bottom of the configuration cylinder (31) is provided with a seal ring (47) at the position where the bottom of the cylinder (31) cooperates with the stretch rod of the discharge jacking cylinder (46).

Further, the upper cover (38) is installed on the arrangement cylinder (31) through the installation bolts (48), and the upper middle part of the upper cover (38) is provided with a hook (49).

Further, the lower part of the delivery cylinder (3) is equipped with a radiation protection detection device (37), and the radiation protection detection device (37) includes a detection cylinder (2) arranged on the frame (1), the The upper part of the detection tube (2) is provided with a delivery port (6) docked with the delivery tube (3), the upper part of the inner right side of the detection tube (2) is inlaid with a radiation emitter (7), and the lower part is inlaid with a The radiation object receiver (8) matched with the radiation object emitter (7) position.

Further, the detection cylinder (2) is provided with a conveying and intercepting cylinder (4), and the conveying and intercepting cylinder (4) is connected with a conveying and intercepting block (5) matched with the conveying port (6). A detection push cylinder (9) is arranged inside the left side of the detection cylinder (2), and the detection push cylinder (9) is connected with a detection push block (10) matched with the detection cylinder (2).

Further, the right end of the detection cylinder (2) is equipped with a detection and interception block (11), and the upper part of the detection and interception block (11) is connected with an interception lifting block (12), and the interception lifting block (12 ) is connected on the interception lift cylinder (13) that the detection cylinder (2) top is provided with.

Further, the right side of the detection cylinder (2) is equipped with a stirring cylinder (15), and the right side of the stirring cylinder (15) is provided with a stirring motor whose output shaft passes into the stirring cylinder (15) (16), the output shaft of the stirring motor (16) is provided with a helical blade (17), and the bottom of the stirring barrel (15) is respectively provided with an unqualified product outlet from left to right ( 18) and qualified product discharge port (20), and are equipped with unqualified product discharge pipe (19) and qualified product discharge pipe (21) respectively, described stirring drum (15) is provided with and unqualified The unqualified product discharge opening and closing device matched with the product discharge port (18).

Further, the detection cylinder (2) is a square cylinder, the mixing cylinder (15) is a prototype cylinder, and the left end of the mixing cylinder (15) is fixedly connected with a square cylinder that matches the detection cylinder (2). block (14), the outside of the square cylinder docking block (14) is a square with the same specification as the detection cylinder (2), and the inner hole is a circle with the same specification as the inner hole of the mixing tube (15), and the circular It is the inscribed circle of the square in the detection cylinder (2).

Further, the described opening and closing device for unqualified products includes opening and closing pull rods (22) embedded in the stirring drum (15) and symmetrically distributed on both sides of the unqualified product outlet (18). The discharge opening and closing pull rod (20) described above is connected with a discharge opening and closing block that cooperates with the unqualified product discharge port (18), and the discharge opening and closing block (23) is connected with the bottom of the stirring drum (15). The vertical cross-sections are similar.

Further, the inner wall of the unqualified product discharge pipe (21) is provided with a vertical reciprocating lifting rod (24), and the reciprocating lifting rod (24) is connected with a reciprocating lifting connection block (25), Described reciprocating lifting connecting block (25) is connected with the reciprocating stopper (26) that matches with the width of the outlet of the unqualified product and cooperates with the screw blade (17), and the reciprocating period of the reciprocating lifting connecting block (25) is the same as The rotation period of the stirring motor (16) is coordinated; the bottom of the reciprocating block (26) is connected to the inclined guide plate (27) inclined to the inner side of the bottom, and the vertical height of the guide inclined plate (27) is greater than that of the reciprocating lift The height of the lifting interval of the pull rod (24).

The beneficial effects of the present invention are:

1. The granular raw materials can be fed separately, and can be evenly dropped into the bottom of the configuration cylinder through the action of the stirring blade. With the stirring rod designed at the bottom, the raw materials can be fully mixed with cement and water, thereby ensuring the production The granular raw materials in the finished concrete slurry are basically kept uniform.

2. The design of the discharge rotary block and the discharge jacking cylinder can tilt the concrete slurry at the bottom, thereby facilitating the concrete slurry to enter the delivery cylinder from the configuration outlet.

3. With the design of the hook, the mixing part can be taken out as a whole by the crane and hoisting equipment, which is convenient for the maintenance and replacement of the mixing part.

4. Through the cooperation of the radiation emitter and the radiation detector in the detection tube, by measuring the blocking of the concrete slurry to the radiation substance, it is determined whether the content of the particles in the concrete slurry is qualified and the distribution is uniform, so as to ensure the formed concrete The block is formed by solidifying qualified concrete slurry, which greatly improves the qualified rate of the formed radiation-proof concrete block, and reduces the subsequent processing cost and raw material waste cost.

5. The coordinated design of the conveying interception cylinder and the detection push cylinder can enable the concrete slurry to be tested section by section, and then the unqualified concrete slurry is eliminated in sections, which reduces the overall waste of the overall inspection and elimination (some concrete slurry is not good enough) Qualification is caused by uneven mixing, it is only necessary to exclude a section of concrete slurry with few particles, and the section-by-section inspection can just achieve this purpose).

6. The design of the detection and interception block can be combined with the detection and pushing block to preliminarily shape the concrete slurry (it has a specific shape that has not been completely solidified, and it can become a slurry again by stirring), and then it can be completed by cooperating with the radiation emitter and the radiation receiver. The detection of radiation protection of concrete slurry can make the detection results more accurate.

7. The design of the stirring motor, the mixing barrel and the spiral blades inside can crush the preliminary formed concrete in the testing barrel into a slurry, and at the same time can achieve the effect of stirring again evenly. The bottom of the stirring barrel is not opened. The qualified product outlet and the qualified product outlet can be classified, screened and collected according to the test results.

8. The square design of the detection cylinder can make the detected concrete slurry into a square shape with uniform thickness, which can improve the detection accuracy, and at the same time, it can also make the radiation emitter have a wider detection range; the circular design of the mixing cylinder is convenient for spiral The mixing and conveying of the concrete slurry by the blades; the square cylinder docking block can realize the perfect docking of the detection cylinder and the mixing cylinder.

9. The unqualified product discharge opening and closing device has a simple structure and ingenious design, and can accurately open and close the unqualified product discharge port opened on the curved surface.

10. The design of the reciprocating lifting rod and the reciprocating stop block can scrape off the residual concrete slurry on the spiral blade, thereby preventing the unqualified concrete from remaining in the qualified concrete.

11. The design of the guide inclined plate can prevent the concrete entering the discharge pipe of unqualified products from interfering with the work of the reciprocating lifting rod.

Description of drawings

Fig. 1 is a structural schematic diagram of a configuration mechanism for radiation-proof concrete slurry used for neutron research.

Fig. 2 is a schematic structural diagram of a radiation protection detection device.

FIG. 3 is a partially enlarged view of A in FIG. 2 .

FIG. 4 is a partially enlarged view of B in FIG. 2 .

The characters shown in the figure are marked as: 1. rack; 2. detection cylinder; 3. delivery cylinder; 4. delivery interception cylinder; 5. delivery interception block; Radiation object receiver; 9. Detection push cylinder; 10. Detection push block; 11. Detection interception block; 12. Interception lifting block; 13. Intercepting lifting cylinder; 14. Square cylinder docking block; Stirring motor; 17, spiral blade; 18, unqualified product discharge port; 19, unqualified product discharge pipe; 20, qualified product discharge port; 21, qualified product discharge pipe; 22, discharge opening and closing rod ; 23. Discharge opening and closing block; 24. Reciprocating lifting rod; 25. Reciprocating lifting connecting block; 26. Reciprocating blocking block; 27. Guide inclined plate; 31. Configuration box; Nozzle; 34. Cement feed port; 35. Configuration outlet; 36. Conveying control valve; 37. Anti-radiation detection device; 38. Upper cover; 39. Stirring motor; 40. Stirring rotor; 41. Stirring blade; 42. Stirring lifting rod; 43, stirring lifting seat; 44, stirring rod; 45, discharging block; 46, discharging jacking cylinder; 47, sealing ring; 48, mounting bolts; 49, hook.

Detailed ways

In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention. .

As shown in Figures 1-4, the structure of the present invention is: a configuration mechanism for radiation-proof concrete slurry used in neutron research, which includes a frame 1 and a configuration cylinder 31 arranged on it, and the configuration cylinder 31 The upper part is evenly opened with no less than three particle feed ports 32, the middle part is provided with a water injection port 33 and a cement feed port 34, and the lower part is provided with a configuration outlet 35, and the configuration port 35 is connected with a delivery control valve 36. Conveyor cylinder 3, the bottom of the upper cover 38 of the configuration cylinder 31 is provided with a vertical stirring motor 39, the bottom of the stirring motor 39 is connected with a stirring rotary block 40, and the side of the stirring rotary block 40 Stirring blades 41 are evenly arranged on the upper part, and stirring lifting rods 42 are arranged on the lower part. The lower part of the stirring lifting rods 42 is connected with a stirring lifting seat 43. The stirring rod 44, the height of the stirring rotary block 40 is between the particle feed port 32 and the water injection port 33.

Preferably, the bottom of the configuration cylinder 31 is hinged with a discharge rotary block 45, and the hinged position is located at the configuration outlet 35. The discharge rotary block 45 is an elastic block, and the other side opposite to the hinge port There is a discharge jacking cylinder 46 linked to the lower part of the cylinder, and the discharge jacking cylinder 46 is arranged on the frame 1 and its stretch rod passes through the bottom of the configuration cylinder 31, and the bottom of the configuration cylinder 31 is connected with the discharge jacking cylinder 46. A seal ring 47 is provided at the position where the stretching rod of the cylinder 46 matches.

Preferably, the upper cover 38 is installed on the arrangement cylinder 31 through the installation bolts 48 , and the upper middle part of the upper cover 38 is provided with a hook 49 .

Preferably, the lower part of the delivery cylinder 3 is equipped with a radiation protection detection device 37, and the radiation protection detection device 37 includes a detection cylinder 2 arranged on the frame 1, and the upper part of the detection cylinder 2 is provided with a transport The delivery port 6 where the cylinder 3 is docked, the upper part of the inner right side of the detection cylinder 2 is inlaid with a radiation emitter 7 , and the lower part is inlaid with a radiation receiver 8 that is matched with the radiation emitter 7 .

Preferably, the detection cylinder 2 is provided with a conveying and intercepting cylinder 4, and the conveying and intercepting cylinder 4 is connected with a conveying and intercepting block 5 matched with the conveying port 6, and the inside of the left side of the detecting cylinder 2 is provided with a detection The push cylinder 9 is connected with the detection push block 10 matched with the detection cylinder 2 .

Preferably, the right end of the detection cylinder 2 is equipped with a detection and interception block 11, and the upper part of the detection and interception block 11 is connected with an interception lifting block 12, and the interception lifting block 12 is connected to the interception block provided on the upper part of the detection cylinder 2. On the lifting cylinder 13.

Preferably, the right side of the detection cylinder 2 is equipped with a stirring drum 15, and the right side of the stirring drum 15 is provided with a stirring motor 16 whose output shaft is introduced into the stirring drum 15, and the stirring motor The output shaft of 16 is provided with helical blade 17, and the bottom of described stirring drum 15 is provided with unqualified product outlet 18 and qualified product outlet 20 respectively from left to right, and is equipped with unqualified product outlet respectively. The material pipe 19 and the qualified product discharge pipe 21, the described mixing cylinder 15 is provided with a non-conforming product discharge opening and closing device that cooperates with the non-conforming product discharge port 18.

Preferably, the detection cylinder 2 is a square cylinder, the mixing cylinder 15 is a prototype cylinder, and the left end of the mixing cylinder 15 is fixedly connected with a square cylinder docking block 14 matched with the detection cylinder 2, and the square cylinder is The outside of the docking block 14 is a square with the same specification as the detection cylinder 2, and the inner hole is a circle with the same specification as the inner hole of the stirring cylinder 15, and the circle is the inscribed circle of the square in the detection cylinder 2.

Preferably, the unqualified product discharge opening and closing device includes discharge opening and closing pull rods 22 embedded in the stirring drum 15 and symmetrically distributed on both sides of the unqualified product discharge port 18, and the discharge opening and closing device The pull rod 20 is connected with a discharge opening and closing block matched with the reject outlet 18 , and the discharge opening and closing block 23 is similar to the vertical cross section at the bottom of the mixing drum 15 .

Preferably, the inner wall of the unqualified product discharge pipe 21 is provided with a vertical reciprocating lift rod 24, and the reciprocating lift rod 24 is connected with a reciprocating lift connecting block 25, and the reciprocating lifting connecting block 25 It is connected with a reciprocating block 26 that matches the width of the outlet of the unqualified product and cooperates with the spiral blade 17, and the reciprocating cycle of the reciprocating lifting connection block 25 is matched with the rotation cycle of the stirring motor 16; The bottom of 26 is connected to the slant guide plate 27 inclined to the inner side of the bottom, and the vertical height of the slant guide plate 27 is greater than the height of the lifting interval of the reciprocating lifting pull rod 24.

During specific use, the configuration process is as follows, first inject water and cement into the configuration cylinder 2, then add particulate matter from the particle feed port 32, and start the stirring motor 39 at the same time, so that it drives the stirring blade 41 and the stirring lift rod 42 to rotate, The particles are evenly scattered to the bottom of the configuration cylinder 2 by the stirring blade 41, and then the stirring rod 42 is driven by the stirring lifting rod 42 to perform a spiral movement of rotation and lifting, so as to mix various raw materials together, and at the same time, the distribution of the particulate matter is relatively uniform, forming concrete Afterwards, the delivery control valve 36 is opened to allow the concrete slurry to enter the delivery cylinder 3, and at the same time, the discharge jacking cylinder 46 drives the upward rotation of the discharge rotary block 45, which further facilitates the concrete slurry entering the delivery cylinder from the configuration outlet 35. 3, then carry out the detection operation, the detection operation is as follows, first make the detection interception block 11 at the lowest position, intercept the detection cylinder 2, and at the same time make the detection push block 10 on the right side of the delivery port 6, and then drive the delivery interception cylinder 4 The conveying interception block 5 moves, so that the conveying port 6 and the conveying pipe 3 are in a connected state, and the unqualified product discharge opening and closing block 23 is in a closed state at this time, and the concrete slurry will enter the detection cylinder 2 from the conveying pipe 3. When When the amount of entry reaches a certain level, the conveying and intercepting block 5 is driven by the conveying and intercepting cylinder 4 to close the conveying pipe 3, and then the detecting and pushing cylinder 9 is driven to drive the detecting and pushing block 10 to push the concrete slurry to the right. Form the not completely solidified concrete slurry of square shape, then emit radiation by radiation emitter 7, radiation does not penetrate to radiation collector 8 after being absorbed by concrete slurry, then the result of detection is qualified, if penetrates to The detection result of the radiation collector 8 is unqualified. If the detection is qualified, the discharge opening and closing device continues to be closed, the stirring motor 16 operates, the detection and interception block 11 is driven up by the interception lifting cylinder 13, and the detection and push cylinder 9 drives the detection and push The block 10 pushes the concrete slurry to the mixing drum 15, and it is fed to the right under the rotation of the screw blade 17 to the qualified product discharge port 20 and then falls into the qualified product discharge pipe 21; The material opening and closing device is opened, and at the same time, the reciprocating lifting rod 24 and the stirring motor 16 operate synchronously. The detection interception block 11 is driven up by the interception lifting cylinder 13, and the detection push cylinder 9 drives the detection push block 10 to push the concrete slurry to the mixing cylinder 15. Under the action of the rotation of the screw blade 17, it is fed to the right to the outlet 18 of the unqualified product, and then falls into the discharge pipe 19 of the unqualified product.

It should be noted that, in this document, the terms "comprising", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or apparatus.

In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above examples is only used to help understand the method and core idea of the present invention. The above is only a preferred embodiment of the present invention. It should be pointed out that due to the limitation of literal expression, there are objectively unlimited specific structures. Under these circumstances, several improvements, modifications or changes can also be made, and the above-mentioned technical features can also be combined in an appropriate manner; these improvements, modifications, or combinations, or the idea and technical solution of the invention can be directly applied to other occasions without improvement should be regarded as the scope of protection of the present invention.

Claims (10)

1. a disposition mechanism for the radiation-proof concrete slurry of neutron research, it comprises frame (1) and disposition cylinder (31) that is arranged on it, it is characterized in that, the top of described disposition cylinder (31) There are not less than 3 particle feed ports (32) uniformly opened, water injection ports (33) and cement feed ports (34) are opened in the middle, and configuration outlets (35) are opened in the lower part, and the configuration ports (35) ) is connected with a delivery cylinder (3) through a delivery control valve (36), and a vertical stirring motor (39) is arranged under the upper cover (38) of the configuration cylinder (31), and the stirring motor ( 39) is connected with a stirring turntable (40), the side of the stirring turntable (40) is evenly provided with stirring blades (41), and the bottom is provided with a stirring lift rod (42), and the stirring lift The lower part of the pull rod (42) is connected with a stirring lifting seat (43), and the surrounding of the stirring lifting seat (43) is evenly provided with a stirring rod (44) inclined outwards, and the stirring turning block (40) The height is between the particle feed port (32) and the water injection port (33). 2. a kind of arrangement mechanism for the anti-radiation concrete slurry that is used for neutron research according to claim 1, is characterized in that, the bottom of described arrangement barrel (31) is hinged with discharge rotary block (45), and The hinged part is located at the configuration outlet (35), the discharge rotary block (45) is an elastic block, and there is a discharge jacking cylinder (46) linked to the bottom of the other side opposite to the hinge interface, the described The discharge jacking cylinder (46) is arranged on the frame (1) and its stretching rod passes through the bottom of the configuration cylinder (31), and the bottom of the configuration cylinder (31) is stretched with the discharge jacking cylinder (46) A sealing ring (47) is provided at the position where the rods cooperate. 3. A configuration mechanism for anti-radiation concrete slurry for neutron research according to claim 1, characterized in that, the upper cover (38) is installed on the configuration cylinder (31) by mounting bolts (48) Above, the middle part of the upper side of the upper cover (38) is provided with a hook (49). 4. a kind of arrangement mechanism for the anti-radiation concrete slurry that is used for neutron research according to claim 1, is characterized in that, the bottom of described conveying cylinder (3) is equipped with anti-radiation detection device (37), so The radiation protection detection device (37) includes a detection cylinder (2) arranged on the frame (1), and the upper part of the detection cylinder (2) is provided with a delivery port (6) docked with the delivery cylinder (3), A radiation emitter (7) is inlaid in the upper part of the inner right side of the detection cylinder (2), and a radiation receiver (8) matching with the radiation emitter (7) is inlaid in the lower part. 5. A configuration mechanism for anti-radiation concrete slurry for neutron research according to claim 4, characterized in that, said detection cylinder (2) is provided with a conveying and intercepting cylinder (4), and said The conveying and intercepting cylinder (4) is connected with a conveying intercepting block (5) matched with the conveying port (6), and the left side of the detection cylinder (2) is provided with a detection and push cylinder (9), and the detection and push cylinder (9) A detection pushing block (10) matching the detection cylinder (2) is connected. 6. A configuration mechanism for radiation-proof concrete slurry for neutron research according to claim 5, characterized in that, the right end of the detection tube (2) is equipped with a detection block (11), the The top of the detection and interception block (11) is connected with an interception lifting block (12), and the interception lifting block (12) is connected on the interception lifting cylinder (13) provided on the top of the detection cylinder (2). 7. A kind of configuration mechanism for radiation-proof concrete slurry for neutron research according to claim 6, characterized in that, the right side of the detection cylinder (2) is equipped with a stirring cylinder (15), the The right side of the mixing drum (15) is provided with a stirring motor (16) whose output shaft is introduced into the stirring drum (15), and the output shaft of the stirring drum (16) is provided with a helical blade (17) , the bottom of the mixing drum (15) is respectively provided with a non-conforming product discharge port (18) and a qualified product discharge port (20) from left to right, and is equipped with a non-conforming product discharge pipe (19) respectively. ) and qualified product discharge pipe (21), the described stirring drum (15) is provided with a non-conforming product discharge opening and closing device that cooperates with the non-conforming product discharge port (18). 8. A configuration mechanism for radiation-proof concrete slurry for neutron research according to claim 7, characterized in that, the detection cylinder (2) is a square cylinder, and the mixing cylinder (15) It is a prototype cylinder, and the left end of the mixing cylinder (15) is fixedly connected with a square cylinder docking block (14) that cooperates with the detection cylinder (2), and the outside of the square cylinder docking block (14) is a Square with the same specification, the inner hole is a circle with the same specification as the inner hole of the mixing tube (15), and the circle is the inscribed circle of the square in the detection tube (2). 9. A configuration mechanism for radiation-proof concrete slurry for neutron research according to claim 7 or 8, characterized in that, the unqualified product discharge opening and closing device includes a mixing drum (15 ) and are symmetrically distributed on the discharge opening and closing pull rods (22) on both sides of the unqualified product discharge port (18). Cooperating discharge opening and closing block, the vertical cross section of the described discharge opening and closing block (23) is similar to the bottom of the mixing drum (15). 10. A kind of arrangement mechanism for the anti-radiation concrete slurry that is used for neutron research according to claim 9, is characterized in that, the inner wall of described unqualified product discharge pipe (21) is provided with vertical direction Reciprocating lifting pull rod (24), described reciprocating lifting pull rod (24) is connected with reciprocating lifting connecting block (25), and described reciprocating lifting connecting block (25) is connected with the width matching with unqualified product outlet and The spiral blade (17) cooperates with the reciprocating block (26), and the reciprocating cycle of the reciprocating lifting connection block (25) is matched with the rotation cycle of the stirring motor (16); the lower part of the reciprocating block (26) is connected A slant guide plate (27) inclined to the inner side of the bottom, and the vertical height of the slant guide plate (27) is greater than the height of the lifting interval of the reciprocating lifting pull rod (24).