Water resistance testing device for coal gangue regenerated mixture

Abstract

The utility model relates to the technical field of coal gangue regenerated mixture production devices, in particular to a water resistance test device for a coal gangue regenerated mixture, which is characterized in that a test water tank is fixedly mounted on a base, a heating device is arranged at the bottom of the test water tank, a lifting device is arranged on the rear side of the base, and a water tank is arranged on the lifting device. The lifting device drives a lifting rod, the lifting rod is fixedly connected with three connecting rods which are uniformly distributed along the transverse direction and extend into the test water tank, and the lower end of each connecting rod is fixedly connected with a sample placing device; each sample placing device comprises an object placing plate fixedly connected with the connecting rod, an object placing groove is formed in the upper end of the object placing plate, a vertical rod is fixedly connected to the connecting rod, a supporting plate is fixedly connected to the vertical rod, and the supporting plate and the connecting rod are jointly and rotationally connected with a lead screw parallel to the vertical rod; the lead screw is in threaded connection with a pressing rod in sliding connection with the vertical rod, and the end of the pressing rod is fixedly connected with a cotton cloth pad corresponding to the storage groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal gangue regeneration mixture production device technical field, especially a kind of water resistance test device of coal gangue regeneration mixture. BACKGROUND

[0002] Coal industry is one of the main industries in China, and a large amount of coal gangue is produced every year. These coal gangue mountains not only occupy a large amount of land resources, but also produce harmful gases such as sulfur dioxide and carbon dioxide during the stacking process, which reduces air quality. At the same time, the weathered coal gangue during the stacking process will form powder and enter the air, increasing the content of inhalable particulate matter and seriously affecting health. In addition, coal gangue also has certain road value. In this context, targeted research on the application technology of coal gangue solid waste material in road base material can effectively increase the added value of coal gangue and increase the industry demand for coal gangue. Therefore, our company, based on the structural characteristics of different road bases, carried out research from multiple dimensions such as structure, material design theory, test comparison and analysis verification, and construction standardization, and produced coal gangue regeneration mixture for roadbed construction. During the research and development of the above-mentioned coal gangue regeneration mixture, testing the performance of the coal gangue regeneration mixture is an important step.

[0003] The performance test of coal gangue regeneration mixture includes heavy compaction test, unconfined test, splitting strength test, compressive resilience modulus test, and water resistance test. Among them, the water resistance test is characterized by the mass loss rate after dry-wet cycle. In the current water resistance test of coal gangue regeneration mixture, the conventional test method is to immerse the coal gangue regeneration mixture in a water tank and then test its mass loss and strength change. However, the test sample of coal gangue regeneration mixture has a certain weight and needs to be immersed in a certain depth of water tank. At present, the test sample of coal gangue regeneration mixture is taken out from the water tank by manual operation, which is relatively inconvenient due to the weight of the test sample and the depth of the water tank. Therefore, the present application provides a water resistance test device for coal gangue regeneration mixture. UTILITY MODEL CONTENTS

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a water resistance test device for coal gangue regeneration mixture, which solves the problem of technical scheme, including base, characterized in that test water tank is fixedly installed on the base, heating device is arranged at the bottom of the test water tank, lifting device is arranged at the rear of the base, lifting rod is driven by the lifting device, three connecting rods are fixedly connected to the lifting rod and extend into the test water tank in lateral distribution, and sample placing device is fixedly connected to the lower end of each connecting rod.

[0005] Each of the sample placing devices comprises a placing plate fixedly connected with a connecting rod, a placing groove is formed in the upper end of the placing plate, a vertical rod is fixedly connected with the connecting rod, the vertical rod is fixedly connected with a supporting plate, the supporting plate is rotatably connected with the connecting rod and is parallel to the vertical rod, a screw rod is fixedly connected with the vertical rod, a pressing rod is slidably connected with the screw rod, and a cotton pad corresponding to the placing groove is fixedly connected with the end of the pressing rod.

[0006] Preferably, a plurality of uniformly distributed through grooves are formed in the bottom surface of each of the placing grooves.

[0007] Preferably, a knob is coaxially fixedly connected with the upper end of each of the screw rods.

[0008] Preferably, the lifting device comprises two vertical shafts arranged in the vertical direction and fixedly connected with the base, a supporting beam is fixedly connected with the upper ends of the two vertical shafts, a driving shaft is arranged in the middle of the two vertical shafts, the upper and lower ends of the driving shaft are rotatably connected with the supporting beam and the base respectively, a screw rod part is integrally coaxially arranged on the driving shaft, a threaded sleeve fixedly connected with the lifting device is threadedly connected with the screw rod part, a sliding sleeve fixedly connected with the lifting rod is slidably sleeved with each of the vertical shafts, and a motor for driving the rotation of the driving shaft is fixedly connected with the upper end of the supporting beam.

[0009] Preferably, the heating device comprises a plurality of uniformly distributed temperature control heating pipes, and the temperature control heating pipes are fixedly installed at the bottom of the test water tank.

[0010] Preferably, a drain pipe is fixedly connected with the bottom of the test water tank, and a drain valve is installed on the drain pipe.

[0011] The utility model discloses the beneficial effects are:

[0012] 1. The sample placing device can be used for placing the test sample of the coal gangue regeneration mixture, the lifting rod can be lifted along with the lifting device, and the connecting rod fixedly connected with the lifting rod and the sample placing device will also be lifted synchronously.

[0013] 2. The sample placing device is arranged in multiple groups, so that multiple samples can be tested simultaneously to form a control group. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the first perspective view of the utility model.

[0015] Figure 2 It is the first perspective view of the utility model.

[0016] Figure 3 It is the second perspective view of the utility model.

[0017] Figure 4 It is the third perspective view of the utility model.

[0018] Reference signs

[0019] 1. Base, 2. Test tank, 3. Lifting device, 4. Lifting rod, 5. Connecting rod, 6. Sample placing device, 7. Placing plate, 8. Placing groove, 9. Vertical rod, 10. Support plate, 11. Screw rod, 12. Pressing rod, 13. Cotton pad, 14. Through groove, 15. Knob, 16. Vertical shaft, 17. Support beam, 18. Drive shaft, 19. Screw part, 20. Threaded sleeve, 21. Slide sleeve, 22. Motor, 23. Temperature control heating pipe, 24. Drain pipe, 25. Drain valve, 26. Test sample. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings Figures 1-4 The specific embodiments of the utility model are further described in detail.

[0021] Embodiment one, the technical scheme it solves is, in the use process, the sample placing device 6 can be used to place the test sample 26 of coal gangue regeneration mixture, the lifting rod 4 provided can be lifted with the lifting device 3, and then the connecting rod 5 fixedly connected with the lifting rod 4 and the sample placing device 6 will also be lifted synchronously, under the action of the lifting device 3, the sample placing device 6 can sink with the test sample 26 into the test tank 2 above the base 1, and then the test personnel can sink the test sample 26 into the appropriate depth of the test tank 2, and after the test is completed, the test sample 26 can also be separated from the test tank 2 upwards with the sample placing device 6 under the action of the lifting device 3, and then the operating personnel can take out the test sample 26 from the test tank 2, the structure of the application is simple, convenient to use and practical. The sample placing device 6 of the application is arranged with multiple groups, and then multiple samples can be tested simultaneously to form a contrast, and the test tank 2 bottom is also arranged with a heating device composed of temperature control heating pipe 23, and the heating temperature range of the temperature control heating pipe 23 is preferably 10-30 degrees Celsius, and the water in the test tank 2 can be temperature controlled according to the test conditions.

[0022] In the embodiment two, on the basis of the embodiment one, the water tank 2 is filled with water for water resistance test, and the water tank 2 is provided with a drain pipe 24, and the water in the water tank 2 can be drained by opening the drain valve 25, so as to facilitate the replacement of water.

[0023] The sample placing device 6 is used for placing the test sample 26 of the coal gangue regeneration mixture. When placing the sample, the sample placing device 6 is first moved upward to a suitable height by the lifting device 3, and then the lead screw 11 is counterclockwise rotated. In order to facilitate the rotation of the lead screw 11 connected to the support plate 10, a knob 15 is arranged at the end of the lead screw 11. The counterclockwise rotation of the lead screw 11 drives the pressing rod 12 to move upward along the vertical rod 9, so as to avoid that the pressing rod 12 is too close to the placing groove 8 and affects the placement of the test sample 26. After the height of the pressing rod 12 is adjusted, the test sample 26 is placed in the placing groove 8 on the placing plate 7, and then the lead screw 11 is clockwise rotated. The lead screw 11 drives the pressing rod 12 to move downward along the vertical rod 9 until the cotton pad 13 on the pressing rod 12 contacts the upper end of the test sample 26 in the placing groove 8, so as to limit the test sample 26 in the placing groove 8 by the pressing plate, and avoid that the test sample 26 is affected by the liquid buoyancy in the water tank 2 and separated from the placing groove during the lifting of the lifting device 3. The bottom of the placing groove 8 is provided with a through groove 14, so as to facilitate the full contact between the test sample 26 and water.

[0024] In the embodiment three, on the basis of the embodiment two, when the lifting device 3 is used, the motor 22 on the support beam 17 is started and rotated in the forward direction. The forward rotation of the motor 22 drives the driving shaft 18 to rotate in the forward direction, and the screw portion 19 on the driving shaft 18 is synchronously rotated in the forward direction. The forward rotation of the screw portion 19 acts on the lifting rod 4 through the threaded sleeve 20, and the lifting rod 4 is in sliding fit with the vertical shaft 16 through the sliding sleeve 21. Thus, under the action of the forward rotation of the screw portion 19, the lifting rod 4 moves downward along the vertical shaft 16, and the connecting rod 5 synchronously moves downward, and then the sample placing device 6 and the test sample 26 fixedly connected to the connecting rod 5 sink to the bottom of the water tank 2. Correspondingly, the reverse rotation of the motor 22 drives the lifting rod 4 to move upward, so as to synchronously move the sample placing device 6 and the test sample 26 upward and out of the water tank 2.

Claims

1. A coal gangue regeneration mixture water resistance test device, comprising a base (1), characterized in that, The base (1) is fixedly installed with a test water tank (2), the bottom of the test water tank (2) is arranged with a heating device, the rear of the base (1) is arranged with a lifting device (3), the lifting device (3) is driven by a lifting rod (4), the lifting rod (4) is fixedly connected with three connecting rods (5) which are evenly distributed in the transverse direction and extend into the test water tank (2), and each connecting rod (5) is fixedly connected with a sample placing device (6) at the lower end; Each sample placing device (6) comprises a placing plate (7) fixedly connected with the connecting rod (5), the upper end of the placing plate (7) is provided with a placing groove (8), the connecting rod (5) is fixedly connected with a vertical rod (9), the vertical rod (9) is fixedly connected with a supporting plate (10), the supporting plate (10) is rotatably connected with the connecting rod (5) and the vertical rod (9) and is arranged in parallel with a lead screw (11), the lead screw (11) is threadedly connected with a pressing rod (12) which is slidably connected with the vertical rod (9), and the end of the pressing rod (12) is fixedly connected with a cotton pad (13) corresponding to the placing groove (8).

2. The water resistance test device for a coal gangue regeneration mixture according to claim 1, characterized in that, The bottom surface of each placing groove (8) is provided with a plurality of evenly distributed through grooves (14).

3. The water resistance test device for a coal gangue regeneration mixture according to claim 1, characterized in that, The upper end of each lead screw (11) is coaxially fixedly connected with a knob (15).

4. The water resistance test device for a coal gangue regeneration mixture according to claim 1, characterized in that, The lifting device (3) comprises two vertical shafts (16) which are arranged in the vertical direction and are fixedly connected with the base (1), the upper ends of the two vertical shafts (16) are fixedly connected with a supporting beam (17), a drive shaft (18) is arranged in the middle of the two vertical shafts (16), the upper and lower ends of the drive shaft (18) are rotatably connected with the supporting beam (17) and the base (1) respectively, the drive shaft (18) is integrally and coaxially arranged with a lead screw portion (19), the lead screw portion (19) is threadedly connected with a threaded sleeve (20) which is fixedly connected with the lifting device, each vertical shaft (16) is slidably sleeved with a sliding sleeve (21) which is fixedly connected with the lifting rod (4), and the upper end of the supporting beam (17) is fixedly connected with a motor (22) for driving the drive shaft (18) to rotate.

5. The water resistance test device for a coal gangue regeneration mixture according to claim 1, characterized in that, The heating device comprises a plurality of evenly distributed temperature control heating pipes (23), and the temperature control heating pipes (23) are fixedly installed at the bottom of the test water tank (2).

6. The water resistance test device for a coal gangue regeneration mixture according to claim 1, characterized in that, The bottom of the test water tank (2) is fixedly connected with a drain pipe (24), and a drain valve (25) is installed on the drain pipe (24).

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