CN212748679U

CN212748679U - Concrete sulfate erosion resistance test device

Info

Publication number: CN212748679U
Application number: CN202021342678.5U
Authority: CN
Inventors: 刘秀红; 姚一帆; 沈超群; 钱晓雄
Original assignee: Suzhou Shangjian Hangxin Concrete Co ltd
Current assignee: Suzhou Shangjian Hangxin Concrete Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-03-19
Anticipated expiration: 2030-07-09

Abstract

The utility model relates to the technical field of concrete performance detection devices, in particular to a concrete sulfate erosion resistance test device, which comprises a main box body, a soaking chamber, a cooling chamber and a heating chamber, wherein the soaking chamber, the cooling chamber and the heating chamber are arranged in the main box body; the side walls of the heating chamber and the cooling chamber which are opposite are provided with second openings for the test blocks to pass through and are provided with automatic doors, a conveyor belt is arranged in the heating chamber, and the end parts of the conveyor belt extend into the heating chamber through the second openings; the upper end of the sample rack is provided with a supporting plate, the supporting plate is connected with the sample rack in a sliding mode, and a pushing assembly is arranged in the cooling chamber. When the test block is heated and cooled repeatedly in the main box body, the heating chamber and the cooling chamber are mutually separated and work independently, so that the heat exchange between the cooling chamber and the heating chamber is effectively reduced, the heat loss is reduced, the energy consumption can be effectively reduced, and the energy conservation and the environmental protection are facilitated.

Description

Concrete sulfate erosion resistance test device

Technical Field

The utility model belongs to the technical field of concrete performance detection device technique and specifically relates to an anti sulfate erosion test device of concrete is related to.

Background

Recycled concrete is widely used as a novel environment-friendly material. Before the recycled concrete is used, the durability of the recycled concrete needs to be tested so as to determine the performance of the recycled concrete, so that the normal use of the recycled concrete is ensured.

Among the factors affecting the durability of recycled concrete, sulfate attack destruction is considered to be one of four major factors causing failure destruction of recycled concrete materials. Sulfate attack is also one of the most complex and most harmful environmental water attacks. Sulfate ions in the environment permeate into the interior of the recycled concrete and react with hydration products, and the recycled concrete has the phenomena of expansion, cracking, peeling and the like, so that the strength and the viscosity of the recycled concrete are reduced, and the recycled concrete buildings are greatly damaged. Therefore, the performance of the recycled concrete against sulfate attack needs to be tested to ensure that the recycled concrete has better service performance. In the process, a concrete sulfate corrosion resistance experiment device is required.

The utility model with publication number CN210108915U specifically discloses an automatic concrete sulfate resistance dry-wet cycle testing machine, which belongs to the technical field of concrete testing equipment, and the technical scheme is characterized in that a first clapboard and a second clapboard which are parallel to the bottom wall of a main box body are sequentially arranged in the main box body from top to bottom, and the first clapboard and the second clapboard divide the inner space of the main box body into a drying chamber, a soaking chamber and a heating chamber; the drying chamber is communicated with a cold and hot air circulating device for drying the sample; the soaking chamber is communicated with a water inlet pipe and a water outlet pipe, and a sample rack for fixing the concrete test block is arranged in the soaking chamber; the sample rack is connected with a driving device which is used for driving the sample rack to move up and down along the direction vertical to the first partition board; the first clapboard is provided with a through hole for the concrete sample to pass through; a heating device for heating the air circulated by the cold and hot air circulating device is provided in the heating chamber.

During testing, a test block is placed on the sample rack, and the driving piece device drives the sample rack to move into the soaking chamber; a water inlet pipe is used for introducing sulfate solution into the soaking chamber to soak the test block; after the preset soaking time is reached, the driving device drives the sample rack to move into the drying chamber, and the cold and hot air circulating device carries out hot air circulating drying and cold air circulating cooling in the drying chamber successively. The concrete test block is subjected to a hydrochloride dry-wet cycle test repeatedly.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the cold and hot air circulating device heats and cools the drying chamber in sequence, namely the drying chamber needs to be heated first and then cooled. In the process, the temperature in the drying chamber is changed greatly, and heat can be lost greatly when the drying chamber is cooled; meanwhile, the cold and hot air circulating device can repeatedly heat and cool the drying chamber, so that the energy consumption of the cold and hot air circulating device is large, and the energy-saving and environment-friendly effects of the testing machine are not facilitated.

SUMMERY OF THE UTILITY MODEL

In order to promote the energy-concerving and environment-protective performance of testing machine, the utility model provides a concrete sulfate erosion resistance test device.

The utility model provides a pair of concrete sulfate erosion resistance test device adopts following technical scheme:

a concrete sulfate erosion resistance test device comprises a main box body and a soaking chamber arranged in the main box body, wherein a cooling chamber is arranged above the soaking chamber, first openings for test blocks to pass through are formed in the side walls of the cooling chamber opposite to the soaking chamber, a sample rack is arranged in the soaking chamber, a driving piece for driving the sample rack to move from the soaking chamber to the cooling chamber is arranged on one side of the sample rack, a heating chamber is arranged on one side of the cooling chamber, an electric heating wire is arranged in the heating chamber, and a drying chamber communicated with the heating chamber is arranged on one side of the heating chamber;

the side walls of the heating chamber and the cooling chamber opposite to each other are provided with second openings for the test blocks to pass through, the second openings are provided with automatic doors, the heating chamber is internally provided with a conveyor belt, and the end parts of the conveyor belt extend into the heating chamber through the second openings;

the sample frame upper end is provided with the layer board that is used for placing the test block, the layer board slides with the sample frame and is connected, be provided with in the cooling chamber and be used for the propelling movement subassembly of layer board propelling movement to the conveyer belt.

Through adopting above-mentioned technical scheme, the test block is placed on the layer board, and the propelling movement subassembly can drive layer board and test block and remove to the heating chamber on the conveyer belt with layer board propelling movement to conveyer belt from the sample frame, conveyer belt, and the heating chamber can heat the test block to in the test block enters into the heating chamber, automatically-controlled door meeting self-closing. Thereby reducing the heat loss in the heating chamber and reducing the energy consumption of the heating chamber. Meanwhile, the drying chamber can dry the test block. Therefore, when the test block is repeatedly heated and cooled in the main box body, the heating chamber and the cooling box can independently work, so that the heat exchange between the cooling chamber and the heating chamber is reduced, the heat loss is reduced, the energy consumption of the concrete sulfate erosion resistance test device can be effectively reduced, and the energy conservation and the environmental protection are facilitated.

The present invention may be further configured in a preferred embodiment as: the propelling movement subassembly include with cooling chamber lateral wall fixed connection's cylinder and with cylinder piston rod end fixed connection's electro-magnet, the connecting block that the lateral wall fixedly connected with of layer board orientation electro-magnet is connected with the electro-magnet.

Through adopting above-mentioned technical scheme, the electro-magnet can adsorb the connecting block, makes layer board and cylinder piston rod connect to make the cylinder can pull back the sample frame from the conveyer belt with the layer board, promoted the degree of automation of concrete anti sulfate erosion test device, the staff of being convenient for uses.

The present invention may be further configured in a preferred embodiment as: the heating chamber is provided with the isolation room between the cooling chamber, the conveyer belt is including setting up at the inside first subband of cooling chamber, setting up the second subband in the isolation room and setting up the third subband in the heating chamber, all be provided with the space that supplies the automatically-controlled door to pass through between first subband and the second subband and between second subband and the third subband.

By adopting the technical scheme, the influence of the conveyor belt on the closing of the automatic door can be avoided, and the automatic door can be completely closed, so that the heat loss in the heating chamber is effectively reduced, and the energy consumption of the heating chamber is favorably reduced. And the isolation chamber can reduce the heat exchange strength between the heating chamber and the cooling chamber, thereby being beneficial to reducing the heat loss of the heating chamber.

The present invention may be further configured in a preferred embodiment as: the two automatic doors are respectively provided with an air curtain above, the air curtains are positioned inside the isolation chamber, and air outlets of the air curtains are arranged downwards.

Through adopting above-mentioned technical scheme, when the automatically-controlled door was opened, hot-air can carry out the heat exchange with the cold air outside the heating chamber in the heating chamber, and the air curtain can play certain separation effect to the hot-air in the heating chamber, hinders the heat exchange between hot-air and the cold air to reduce the calorific loss of heating chamber, be favorable to reducing the energy consumption of concrete anti sulfate erosion test device.

The present invention may be further configured in a preferred embodiment as: and heat-insulating layers are arranged outside the heating chamber and the drying chamber and are coated outside the heating chamber and the drying chamber.

Through adopting above-mentioned technical scheme, the heat preservation can keep warm to the heating chamber, reduces the thermal loss in the heating chamber to reduce the energy consumption of heating chamber.

The present invention may be further configured in a preferred embodiment as: an air inlet pipe is arranged between the drying chamber and the heating chamber, one end of the air inlet pipe is fixedly connected with the heating chamber, the other end of the air inlet pipe is fixedly connected with the drying chamber, and a first fan is arranged in the air inlet pipe; the drying chamber is internally provided with dehumidifying cotton which is positioned between the air inlet pipe and the air outlet pipe;

and an air outlet pipe is further arranged on one side of the air inlet pipe, one end of the air outlet pipe is fixedly connected with the heating chamber, and the other end of the air outlet pipe is fixedly connected with the drying chamber.

Through adopting above-mentioned technical scheme, when the heating chamber heated the test block, the adnexed solution in test block surface can evaporate, and during first fan can let in the humid hot-air in the heating chamber the drying chamber, the dehumidification cotton can adsorb vapor to reach the effect to the heating chamber dehumidification, and the hot-air can circulate in air-supply line and air-out pipe, thereby makes the drying chamber can continuously dehumidify the heating chamber.

The present invention may be further configured in a preferred embodiment as: the drying chamber is characterized in that a third opening is formed in the side wall of the drying chamber, a sealing door is arranged on the third opening, and the dehumidifying cotton is detachably connected with the drying chamber.

Through adopting above-mentioned technical scheme, the dehumidification cotton can be changed to be convenient for guarantee the normal use of drying chamber, and guarantee the dehumidification effect of drying chamber.

The present invention may be further configured in a preferred embodiment as: a pressure release valve is arranged on the side wall of the heating chamber and is set to be a one-way valve.

Through adopting above-mentioned technical scheme, the pressure release valve can guarantee the balance of the indoor outer atmospheric pressure of heating, avoids the heating chamber air pressure too big and cause the potential safety hazard.

The present invention may be further configured in a preferred embodiment as: an air inlet and an air outlet are formed in the side wall of the cooling chamber, and a second fan is fixedly connected in the air inlet.

Through adopting above-mentioned technical scheme, the second fan can promote the air circulation speed in the cooling chamber to in the cooling rate of promotion cooling chamber.

The present invention may be further configured in a preferred embodiment as: the cooling chamber is internally provided with an air inlet duct, one end of the air inlet duct is communicated with the air inlet, and the other end of the air inlet duct is arranged towards the first opening.

Through adopting above-mentioned technical scheme, when the cooling chamber cools off the test block, the test block is located the sample frame to be located first opening top, the second fan can blow to the test block through the air inlet duct, so that cool off fast to the test block.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when the test block is repeatedly heated and cooled in the main box body, the heating chamber and the cooling chamber are mutually separated and work independently, so that the heat exchange between the cooling chamber and the heating chamber can be effectively reduced, the heat loss is reduced, the energy consumption of the concrete sulfate erosion resistance test device can be effectively reduced, and the energy conservation and the environmental protection are facilitated;

2. when the automatic door is opened, the hot air in the heating chamber can exchange heat with the cold air outside the heating chamber, and the air curtain can play a certain role in blocking the hot air in the heating chamber and block the heat exchange between the hot air and the cold air, so that the heat loss of the heating chamber is reduced, and the energy consumption of the concrete sulfate erosion resistance test device is favorably reduced;

3. the second fan can increase the air circulation speed in the cooling chamber so as to increase the cooling speed of the cooling chamber; and the second fan can blow to the test block through the intake stack to in carry out rapid cooling to the test block.

Drawings

FIG. 1 is a schematic structural diagram of a concrete sulfate erosion resistance test device.

FIG. 2 is a schematic view for showing the inner structure of the soak chamber and the cooling chamber.

Fig. 3 is a structure for showing an automatic door and a wind curtain.

Fig. 4 is a view for showing the internal structure of the drying chamber and the heating chamber.

Description of reference numerals: 1. a main box body; 2. a soaking chamber; 21. a sample holder; 211. a support plate; 22. a drive member; 221. a hydraulic cylinder; 222. a first guide rail; 223. a second guide rail; 23. a connecting rod; 3. a cooling chamber; 31. a closing door; 32. a push assembly; 321. a cylinder; 322. an electromagnet; 323. connecting blocks; 33. a first opening; 34. a second fan; 35. an air inlet duct; 4. an isolation chamber; 41. an automatic door; 42. a motor; 43. an air curtain; 5. a heating chamber; 51. an electric heating wire; 52. a pressure relief valve; 6. a drying chamber; 61. an air inlet pipe; 62. an air outlet pipe; 63. a first fan; 64. dehumidifying cotton; 65. a sealing door; 7. a conveyor belt; 71. a first branch belt; 72. a second branch belt; 73. a third branch belt; 8. a heat-insulating layer; 9. and (6) testing blocks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a concrete sulfate erosion resistance test device, including main tank 1, set up soak room 2 in main tank 1 bottom, set up the cooling chamber 3 above soaking room 2, set up heating chamber 5 in cooling chamber 3 one side and set up the drying chamber 6 below heating chamber 5. A feeding opening is formed in the upper end of the cooling chamber 3 and provided with a sealing door 31, and a worker can put the concrete test block 9 into the cooling chamber 3 through the feeding opening. A first opening 33 is opened in the side wall between the cooling chamber 3 and the soak chamber 2, and the sample rack 21 and a driving member 22 for controlling the up-and-down movement of the sample rack 21 are provided in the soak chamber 2.

Referring to fig. 1 and 2, the driving member 22 includes a first guide rail 222 disposed in a tube shape, a hydraulic cylinder 221 disposed inside the first guide rail 222, and a second guide rail 223 disposed vertically, the first guide rail 222 is disposed vertically and has an upper end and a lower end fixedly connected to the top wall and the bottom wall of the soak chamber 2, respectively, and the sample rack 21 is slidably connected to the first guide rail 222; the second guide rail 223 is arranged above the sample rack 21, the lower end of the second guide rail 223 is fixedly connected with the sample rack 21, the second guide rail 223 penetrates through the top wall of the soaking chamber 2 and is connected with the top wall of the soaking chamber 2 in a sliding manner, the upper end of the second guide rail 223 extends into the cooling chamber 3 and is fixedly connected with a connecting rod 23, and the connecting rod 23 is horizontally arranged; the hydraulic cylinder 221 has a piston rod extending through the top wall of the infusion chamber 2 into the cooling chamber 3 and is fixedly connected to the connecting rod 23. Thus, when the piston rod of the hydraulic cylinder 221 is extended or contracted, the sample holder 21 can be moved up and down.

Referring to fig. 1, a support plate 211 is arranged at the upper end of the sample holder 21, and the lower end of the support plate 211 is in sliding contact with the upper end of the sample holder 21; when the sample rack 21 is located at the first opening 33, the test block 9 is placed on the supporting plate 211, the hydraulic cylinder 221 drives the test block 9 to move downwards into the soaking chamber 2, the sulfate solution is contained in the soaking chamber 2, and the test block 9 can be soaked in the sulfate solution, so that the sulfate resistance of the concrete test block 9 can be tested.

Referring to fig. 1 and 2, an air inlet and an air outlet are formed in the side wall of the cooling chamber 3, a second fan 34 is disposed in the air inlet, an air inlet duct 35 is disposed inside the cooling chamber 3, one end of the air inlet duct 35 is fixedly connected and communicated with the air inlet, and the other end of the air inlet duct is disposed toward the first opening 33, so that when the test block 9 is located inside the cooling chamber 3, the second fan 34 can blow air to the test block 9 through the air inlet duct 35.

Referring to fig. 3, a heating chamber 5 is arranged on one side of the cooling chamber 3 in the horizontal direction, an isolation chamber 4 is arranged between the heating chamber 5 and the cooling chamber 3, second openings are respectively arranged on the opposite side walls of the heating chamber 5 and the cooling chamber 3, automatic doors 41 are arranged, and the two automatic doors 41 are both positioned in the isolation chamber 4; a motor 42 capable of driving the automatic door 41 to slide in the horizontal direction is disposed above the automatic door 41, so that the automatic door 41 can be automatically opened or closed. The cooling chamber 3 is provided therein with a conveyor belt 7, and the conveyor belt 7 extends to the inside of the heating chamber 5 through the second opening.

Referring to fig. 2, when the sample rack 21 is located at the first opening 33, the lower end of the supporting plate 211 is flush with the upper end of the conveyor belt 7, a pushing assembly 32 is further arranged in the cooling chamber 3, and the pushing assembly 32 comprises an air cylinder 321 arranged on one side of the conveyor belt 7 based on the principle of the supporting plate 211 and an electromagnet 322 fixedly connected with the end of a piston rod of the air cylinder 321; the cylinder body of the cylinder 321 is fixedly connected with the side wall of the cooling chamber 3, the piston rod of the cylinder 321 points to the supporting plate 211, and the side wall of the supporting plate 211 facing the cylinder 321 is fixedly connected with an iron connecting block 323. The cylinder 321 can be with layer board 211 propelling movement to on the conveyer belt 7 to conveyer belt 7 drives layer board 211 and test block 9 and removes, and when electro-magnet 322 switched on, connecting block 323 can be connected with electro-magnet 322, makes the cylinder 321 can drag layer board 211 from conveyer belt 7 to sample frame 21 on, so that sample frame 21 drives layer board 211 and test block 9 and removes.

Referring to fig. 1, the conveyor belt 7 includes a first branch belt 71 disposed in the cooling chamber 3, a second branch belt 72 disposed in the isolation chamber 4, and a third branch belt 73 disposed inside the heating chamber 5, and a gap for moving the automatic door 41 is left between the first branch belt 71 and the second branch belt 72 and between the second branch belt 72 and the third branch belt 73, so as to ensure that the automatic door 41 can completely close the second opening. When the first branch belt 71 drives the test block 9 to move to the second opening, the automatic door 41 on the cooling chamber 3 is opened, so that the test block 9 moves to the second branch belt 72, then the automatic door 41 on the cooling chamber 3 is closed, the automatic door 41 on the heating chamber 5 is opened, the second branch belt 72 transfers the test block 9 to the third branch belt 73, and then the automatic door 41 on the heating chamber 5 is closed. An electric heating wire 51 is provided on the inner wall of the heating chamber 5 to heat the test block 9.

Referring to fig. 1, a pressure relief valve 52 is fixedly connected to a top wall of the heating chamber 5, and the pressure relief valve 52 can ensure the balance of the air pressure between the inside of the heating chamber 5 and the outside of the heating chamber 5, thereby improving the safety of the heating chamber 5.

Referring to fig. 1 and 3, air curtains 43 are disposed above the two automatic doors 41, the air curtains 43 are fixedly connected with the inner wall of the isolation chamber 4 through a support frame, and air outlets of the air curtains 43 face downward. When the automatic door 41 is opened, the air curtain 43 is activated, and the air curtain 43 can obstruct the hot air in the heating chamber 5, so that the heat loss in the heating chamber 5 is reduced, and the energy consumption of the heating chamber 5 is reduced.

Referring to fig. 3, a drying chamber 6 is further provided below the heating chamber 5, an air inlet pipe 61 is provided between the drying chamber 6 and the heating chamber 5, a pipe wall of the air inlet pipe 61 is fixedly connected with a bottom wall of the heating chamber 5, and one end of the air inlet pipe 61 is communicated with the heating chamber 5, and the other end is communicated with the drying chamber 6, so that the drying chamber 6 and the heating chamber 5 are communicated with each other. When the test piece 9 is moved into the heating chamber 5, the solution adheres to the surface of the test piece 9, and when the heating chamber 5 heats the test piece 9, the water in the solution is evaporated. Be provided with first fan 63 in the air-supply line 61, during first fan 63 can let in the hot-air of humidity in the heating chamber 5 to drying chamber 6, can dismantle in the drying chamber 6 and be connected with dehumidification cotton 64, dehumidification cotton 64 has stronger hydroscopicity, can adsorb the moisture in the hot-air.

Referring to fig. 4, an air outlet pipe 62 is disposed on a side of the dehumidifying cotton 64 opposite to the air inlet pipe 61, a pipe wall of the air outlet pipe 62 is fixedly connected with a side wall of the drying chamber 6, one end of the air outlet pipe 62 is communicated with the heating chamber 5, and the other end of the air outlet pipe 62 is communicated with the drying chamber 6, so that dry hot air can return to the heating chamber 5 from the air outlet pipe 62, thereby realizing the dehumidifying effect on the heating chamber 5.

Referring to fig. 3, the outer sides of the heating chamber 5 and the drying chamber 6 are both provided with the heat preservation layer 8, and the heat preservation layer 8 covers the outer sides of the heating chamber 5 and the drying chamber 6, so that the drying chamber 6 and the heating chamber 5 can be preserved heat, the heat loss in the heating chamber 5 is reduced, and the energy consumption of the heating chamber 5 is reduced.

Referring to fig. 4, a third opening through which the dehumidifying cotton 64 passes is formed in the side wall of the drying chamber 6, and a sealing door 65 is provided on the third opening, so that a worker can open the sealing door 65 to replace the dehumidifying cotton 64.

The implementation principle of the embodiment is as follows: the closing door 31 is opened, the test block 9 is placed on the supporting plate 211, the hydraulic cylinder 221 is started, the hydraulic cylinder 221 drives the test sample rack 21 and the test block 9 to move downwards, and the test block 9 is soaked in the sulfate solution. After the immersion, the hydraulic cylinder 221 moves the sample holder 21 upward to return the test block 9 to the cooling chamber 3.

Starting the air cylinder 321, enabling the air cylinder 321 to push the supporting plate 211 and the test block 9 onto the first supporting belt 71, opening the automatic door 41 and the air curtain 43 on the cooling chamber 3, enabling the first supporting belt 71 to convey the supporting plate 211 and the test block 9 onto the second supporting belt 72, and closing the automatic door 41 and the air curtain 43 on the cooling chamber 3; the air curtain 43 and the automatic door 41 on the heating chamber 5 are opened, the second branch belt 72 pushes the tray 211 and the test block 9 onto the third branch belt 73, then the automatic door 41 and the air curtain 43 on the heating chamber 5 are closed, and the heating chamber 5 heats the test block 9.

The first fan is activated, and the first fan and the drying chamber 6 dehumidify the moist hot air in the heating chamber 5, thereby performing the drying process on the heating chamber 5.

After the test block 9 is heated, the conveyor belt 7 conveys the test block 9 and the supporting plate 211 back to the cooling chamber 3, the second fan 34 is started, and the second fan 34 cools the test block 9 quickly. When the supporting plate 211 needs to be moved to the sample rack 21, the electromagnet 322 is powered on, the air cylinder 321 drives the electromagnet 322 to be connected with the connecting block 323, and then the air cylinder 321 can drag the supporting plate 211 and the test block 9 to the sample rack 21.

The embodiments of the present invention are the preferred embodiments of the present invention, and the protection scope of the present invention is not limited by this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a concrete sulfate erosion resistance test device, includes main tank body (1) and sets up soak room (2) inside main tank body (1), soak room (2) top and be provided with cooling chamber (3), cooling chamber (3) and soak and all offer first opening (33) that supply test block (9) to pass through on the relative lateral wall of room (2), be provided with sample frame (21) in soaking room (2), sample frame (21) one side is provided with and drives sample frame (21) and remove driving piece (22) to cooling chamber (3) in from soaking room (2), its characterized in that: a heating chamber (5) is arranged on one side of the cooling chamber (3), an electric heating wire (51) is arranged in the heating chamber (5), and a drying chamber (6) communicated with the heating chamber (5) is arranged on one side of the heating chamber (5);

the side walls of the heating chamber (5) opposite to the cooling chamber (3) are provided with second openings for the test blocks (9) to pass through, an automatic door (41) is arranged on each second opening, a conveyor belt (7) is arranged in the heating chamber (5), and the end parts of the conveyor belts (7) extend into the heating chamber (5) through the second openings;

sample frame (21) upper end is provided with layer board (211) that is used for placing test block (9), layer board (211) slide with sample frame (21) and are connected, be provided with in cooling chamber (3) and be used for propelling movement subassembly (32) to conveyer belt (7) with layer board (211).

2. The test device for testing the sulfate corrosion resistance of concrete according to claim 1, wherein: the pushing assembly (32) comprises a cylinder (321) fixedly connected with the side wall of the cooling chamber (3) and an electromagnet (322) fixedly connected with the end part of a piston rod of the cylinder (321), and the supporting plate (211) is fixedly connected with a connecting block (323) connected with the electromagnet (322) towards the side wall of the electromagnet (322).

3. The test device for testing the sulfate corrosion resistance of concrete according to claim 1, wherein: be provided with isolation room (4) between heating chamber (5) and cooling chamber (3), conveyer belt (7) are including setting up first subband (71) in cooling chamber (3) inside, setting up second subband (72) in isolation room (4) and setting up third subband (73) in heating chamber (5), all be provided with the space that supplies automatically-controlled door (41) to pass through between first subband (71) and second subband (72) and between second subband (72) and third subband (73).

4. The test device for testing the sulfate corrosion resistance of concrete according to claim 3, wherein: two automatically-controlled door (41) tops all are provided with air curtain (43), air curtain (43) are located inside isolation room (4), air curtain (43) air outlet sets up downwards.

5. The test device for testing the sulfate corrosion resistance of concrete according to claim 1, wherein: and heat preservation layers (8) are arranged on the outer sides of the heating chamber (5) and the drying chamber (6), and the heat preservation layers (8) are coated on the outer sides of the heating chamber (5) and the drying chamber (6).

6. The test device for testing the sulfate corrosion resistance of concrete according to claim 1, wherein: an air inlet pipe (61) is arranged between the drying chamber (6) and the heating chamber (5), one end of the air inlet pipe (61) is communicated with the heating chamber (5), the other end of the air inlet pipe is communicated with the drying chamber (6), and a first fan (63) is arranged in the air inlet pipe (61); dehumidifying cotton (64) is arranged in the drying chamber (6), and the dehumidifying cotton (64) is positioned between the air inlet pipe (61) and the air outlet pipe (62);

an air outlet pipe (62) is further arranged on one side of the air inlet pipe (61), one end of the air outlet pipe (62) is communicated with the heating chamber (5), and the other end of the air outlet pipe is communicated with the drying chamber (6).

7. The test device for testing the sulfate corrosion resistance of concrete according to claim 6, wherein: the drying chamber (6) has a third opening on the side wall, a sealing door (65) is arranged on the third opening, and the dehumidifying cotton (64) is detachably connected with the drying chamber (6).

8. The test device for testing the sulfate corrosion resistance of concrete according to claim 1, wherein: a pressure release valve (52) is arranged on the side wall of the heating chamber (5), and the pressure release valve (52) is a one-way valve.

9. The test device for testing the sulfate corrosion resistance of concrete according to claim 1, wherein: an air inlet and an air outlet are formed in the side wall of the cooling chamber (3), and a second fan (34) is fixedly connected in the air inlet.

10. The test device for testing the sulfate corrosion resistance of concrete according to claim 9, wherein: the cooling chamber (3) is internally provided with an air inlet duct (35), one end of the air inlet duct (35) is communicated with the air inlet, and the other end of the air inlet duct is arranged towards the first opening (33).