Automatic determinator for specific surface area of cement

Abstract

The invention relates to the technical field of cement detection, in particular to an automatic determinator for the specific surface area of cement, and solves the problems that when the specific surface area of a cement sample is determined in the prior art, the temperature influencing a solution and air pressure is inconvenient to adjust, so that the determination result is inaccurate, and the solution is easy to deteriorate when slag falls off from the cement sample. An automatic determinator for the specific surface area of cement comprises a protection display mechanism, an air exhaust determination mechanism, a multi-point monitoring mechanism and a ventilation and heat preservation mechanism, the air exhaust determination mechanism is installed on the inner side of the protection display mechanism, and the multi-point monitoring mechanism is installed at the bottom end of the air exhaust determination mechanism. A ventilation and heat preservation mechanism is installed on one side of the multi-point monitoring mechanism, and a material storage isolation mechanism is installed on the rear end face of the air exhaust measuring mechanism. The temperature in the measurement process is subjected to heat preservation adjustment, so that the situation that the measurement result is inaccurate due to the influence on the solution and the air pressure can be avoided, and the influence on the purity of the solution due to cement sample slag falling is effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of cement detection, in particular to an automatic cement specific surface area determination instrument. Background Art

[0002] The size of cement specific surface area is closely related to its particle size. The more fine particles there are, the larger the specific surface area is, which means that the cement is more active and reacts faster. Therefore, specific surface area is one of the important indicators for evaluating cement performance. Cement specific surface area refers to the surface area of ​​cement per unit mass, usually expressed as surface area per gram of cement. The methods for determining cement specific surface area mainly include air permeability method and Blaine method. The determination of cement specific surface area is mainly carried out by air permeability method, which calculates the specific surface area by measuring the influence of cement layer with a certain porosity on air flow rate.

[0003] The existing method for measuring the specific surface area of ​​cement samples is not convenient for adjusting the temperature that affects the solution and air pressure, which leads to inaccurate measurement results. In addition, the solution is easily deteriorated when the cement sample falls off. Therefore, it does not meet the existing needs. We have proposed an automatic cement specific surface area measuring instrument. Summary of the invention

[0004] The object of the present invention is to provide an automatic cement specific surface area measuring instrument to solve the problem in the above-mentioned background technology that when measuring the specific surface area of ​​cement samples, it is inconvenient to adjust the temperature that affects the solution and air pressure, which leads to inaccurate measurement results, and the cement sample is prone to deterioration of the solution when it falls off.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic cement specific surface area measuring instrument, comprising a protective display mechanism, an air extraction measuring mechanism, a multi-point monitoring mechanism and a ventilation and heat preservation mechanism, wherein the inner side of the protective display mechanism is equipped with an air extraction measuring mechanism, the bottom end of the air extraction measuring mechanism is equipped with a multi-point monitoring mechanism, one side of the multi-point monitoring mechanism is equipped with a ventilation and heat preservation mechanism, the rear end surface of the air extraction measuring mechanism is equipped with a material storage isolation mechanism, the protective display mechanism comprises a supporting base, the upper end surface of the supporting base is fixedly equipped with a protective installation box, and the front end surface of the upper part of the protective installation box is fixedly equipped with two positioning clamps;

[0006] The multi-point monitoring mechanism comprises a monitoring box, the monitoring box is fixedly connected to the protective installation box, a plurality of light detectors are installed on the inner side of the monitoring box, and a plurality of elastic clips are installed on the front end surface of the monitoring box;

[0007] The air extraction measurement mechanism includes a connecting elbow, which is fixedly connected to two positioning clamps, a sample positioning sleeve is installed at the rear end of the connecting elbow, a spherical connecting tube is installed at the bottom end of the connecting elbow, a U-shaped liquid storage tube is fixedly installed at the bottom end of the spherical connecting tube, a gas supply hose is installed on one side of the spherical connecting tube, a solenoid valve is installed at the bottom end of the gas supply hose, and an air pump is installed on one side of the solenoid valve.

[0008] Preferably, the protective display mechanism also includes a transparent cover rotatably connected to the protective installation box, two magnetic blocks are fixedly provided on the sides of the transparent cover, a vibration-damping strip is fixedly installed on the inner side of the transparent cover, a display screen and a button control area are fixedly installed on the front face of the protective installation box, the display screen is located directly above the button control area, a ventilation plate is fixedly installed on the right side of the protective installation box, a partition frame is fixedly installed on the inner side of the support base, and a sealing connecting seat is installed on the left side of the protective installation box.

[0009] Preferably, the material storage isolation mechanism includes four guide slides, and the four guide slides are fixedly connected to the protection mounting box. A material storage protection frame is installed between the four guide slides, and two sample placement plates are installed on the inner side of the material storage protection frame. A locking knob is installed on the upper end of the material storage protection frame, and a ventilation sheet is installed on one side of the locking knob.

[0010] Preferably, the ventilation and heat preservation mechanism includes an insulated air delivery box, an input cone sleeve and an output cone sleeve are fixedly installed on the left end of the insulated air delivery box, the input cone sleeve is located directly above the output cone sleeve, two fan boxes are fixedly installed on the right end of the insulated air delivery box, and a radiator is fixedly installed on the inner side of the middle part of the insulated air delivery box.

[0011] Preferably, the upper and lower ends of the transparent cover are magnetically connected to the protective mounting box through magnetic blocks, the transparent cover and the material storage protection frame are made of acrylic, a positioning arc groove is provided on one side of the vibration damping strip, the U-shaped liquid storage tube is inserted into the inner side of the positioning arc groove, and the transparent cover and the U-shaped liquid storage tube are connected through the vibration damping strip.

[0012] Preferably, a measuring cavity is formed between the transparent cover and the protective installation box, the thermal insulation gas delivery box and the measuring cavity are through-connected via an input conical sleeve and an output conical sleeve, the thermal insulation gas delivery box and the protective installation box are fixedly connected via an input conical sleeve and an output conical sleeve, the interior of the radiator is filled with a heat-conducting medium, an electric thermal resistance wire is fixedly provided on the inner side of the radiator, a temperature sensor is provided on the inner side of the output conical sleeve, and the airflow directions on the inner sides of the two fan boxes are opposite.

[0013] Preferably, the monitoring box is fixedly connected to the U-shaped liquid storage tube via a plurality of elastic clips, the front end of the light detector passes through the monitoring box and is in close contact with the U-shaped liquid storage tube, and the light detector is installed corresponding to the elastic clips.

[0014] Preferably, the inner side of the U-shaped liquid storage tube is filled with a colored solution, the U-shaped liquid storage tube, the spherical connecting tube and the gas supply hose are through-connected, the gas supply hose is through-connected to the input end of the air pump, the air pump is fixedly connected to the protective installation box, and the air pump, the solenoid valve and the display screen are electrically connected.

[0015] Preferably, the connecting elbow is connected to the spherical connecting tube via a sealing connecting seat, sealing rings are provided between the sealing connecting seat, the spherical connecting tube and the connecting elbow, the sealing connecting seat is fixedly connected to the protective mounting box, the middle part of the connecting elbow is fixedly connected to the protective mounting box via two positioning clamps, the rear end of the connecting elbow is through-connected to the sample positioning sleeve, and the rear end height of the connecting elbow is lower than the middle part height of the connecting elbow.

[0016] Preferably, the material storage protection frame is slidably connected to the protection installation box via four guide slides, the material storage protection frame is clamped and installed with two sample placement plates, the ventilation sheet is through-connected with the sample positioning sleeve, the front end of the locking knob passes through the material storage protection frame and is threadedly connected to the protection installation box, and the upper end of the material storage protection frame is fixedly connected to the protection installation box via the locking knob.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention is provided with a measuring chamber between the transparent cover and the protective installation box. Two fan boxes can extract external air and convey it to the inner side of the measuring chamber through the input cone sleeve and the output cone sleeve and discharge it. The inside of the radiator is filled with a heat-conducting medium, and an electric thermal resistance wire is installed on the inner side of the radiator, so that the temperature of the airflow input to the inner side of the measuring chamber can be adjusted and kept stable by the heat-conducting medium and the electric thermal resistance wire, so as to avoid the solution and air pressure being affected by the temperature when the cement sample is measured;

[0019] 2. In the present invention, an air pump is used to evacuate the inner side of the U-shaped liquid storage tube through an air delivery hose and a spherical connecting tube, and then when the inner side of the U-shaped liquid storage tube is in a negative pressure state, the liquid level of the colored solution inside the U-shaped liquid storage tube gradually decreases, and the liquid level of the colored solution inside the U-shaped liquid storage tube can be monitored in real time by a plurality of linearly arranged light detectors, and then the liquid levels corresponding to the colored solution at different time points are recorded and calculated, so as to realize the precise measurement operation of the specific surface area of ​​the cement sample, and the rear end height dimension of the connecting elbow is lower than the middle part height dimension of the connecting elbow, so that during the measurement of the cement sample, the connecting elbow can prevent the slag of the cement sample that is pressed and dropped from flowing into the inner side of the U-shaped liquid storage tube, thereby effectively maintaining the purity of the colored solution inside the U-shaped liquid storage tube, and facilitating repeated and precise measurement and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 A rear side view of the present invention as a whole;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the support base of the present invention;

[0023] Figure 4 It is a schematic diagram of the installation structure of the air extraction measuring mechanism of the present invention;

[0024] Figure 5 It is a schematic cross-sectional structure diagram of the protection display mechanism of the present invention;

[0025] Figure 6 It is a schematic diagram of the installation structure of the ventilation and heat-insulating mechanism of the present invention;

[0026] Figure 7 For the present invention Figure 6 Schematic diagram of the cross-sectional structure of area A in the middle;

[0027] Figure 8 It is a structural schematic diagram of the material storage isolation mechanism of the present invention;

[0028] Fig. 9 It is a schematic diagram of the cross-sectional structure of the multi-point monitoring mechanism of the present invention.

[0029] In the figure: 1. protective display mechanism; 101. support base; 102. protective installation box; 103. transparent cover; 104. magnetic block; 105. display screen; 106. key control area; 107. ventilation plate; 108. vibration reduction strip; 109. partition frame; 110. sealing connection seat; 111. positioning clamp; 2. material storage isolation mechanism; 201. material storage protection frame; 202. locking knob; 203. ventilation sheet; 204. sample placement plate; 205. guide slide ; 3. Air extraction and measurement mechanism; 301. U-shaped liquid storage tube; 302. Spherical connecting tube; 303. Gas supply hose; 304. Solenoid valve; 305. Air pump; 306. Connecting elbow; 307. Sample positioning sleeve; 4. Multi-point monitoring mechanism; 401. Monitoring box; 402. Elastic clip; 403. Photodetector; 5. Ventilation and insulation mechanism; 501. Insulated gas supply box; 502. Input cone sleeve; 503. Output cone sleeve; 504. Radiator; 505. Fan box. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] The air pump 305 (model ZYBW80E) mentioned in the present invention can be purchased from the market or obtained through private customization.

[0032] See also Figures 1 to 5 , an embodiment of the present invention: an automatic measuring instrument for specific surface area of ​​cement, comprising a protective display mechanism 1, an air extraction measuring mechanism 3, a multi-point monitoring mechanism 4 and a ventilation and heat preservation mechanism 5, the protective display mechanism 1 comprising a supporting base 101, a protective installation box 102 is fixedly installed on the upper end surface of the supporting base 101, two positioning clamping plates 111 are fixedly installed on the front end surface of the upper part of the protective installation box 102, the protective display mechanism 1 also comprises a transparent cover 103 rotatably connected to the protective installation box 102, a measuring cavity is formed between the transparent cover 103 and the protective installation box 102, two magnetic blocks 104 are fixedly provided on the side of the transparent cover 103, the upper and lower ends of the transparent cover 103 are magnetically connected to the protective installation box 102 through the magnetic blocks 104, a vibration damping strip 108 is fixedly installed on the inner side of the transparent cover 103, and the protective display mechanism 1 is convenient for the protective installation of the material storage isolation mechanism 2, the air extraction measuring mechanism 3, the multi-point monitoring mechanism 4 and the ventilation and heat preservation mechanism 5;

[0033] A display screen 105 and a button control area 106 are fixedly installed on the front face of the protective installation box 102. The display screen 105 is located directly above the button control area 106. A ventilation plate 107 is fixedly installed on the right side of the protective installation box 102. A partition frame 109 is fixedly installed on the inner side of the support base 101. A sealing connecting seat 110 is installed on the left side of the protective installation box 102. The display screen 105 and the button control area 106 facilitate the display and control of the cement sample measurement process.

[0034] See also Figure 3 , Figure 4 and Fig. 9 A gas extraction measuring mechanism 3 is installed on the inner side of the protection display mechanism 1, and a multi-point monitoring mechanism 4 is installed on the bottom end of the gas extraction measuring mechanism 3. The multi-point monitoring mechanism 4 includes a monitoring box 401, which is fixedly connected to the protection installation box 102. A plurality of light detectors 403 are installed on the inner side of the monitoring box 401, and a plurality of elastic clips 402 are installed on the front end surface of the monitoring box 401. The monitoring box 401 is fixedly connected to the U-shaped liquid storage tube 301 through the plurality of elastic clips 402. The front end of the light detector 403 penetrates the monitoring box 401 and is in contact with the U-shaped liquid storage tube 301. The light detector 403 is installed corresponding to the elastic clip 402. The liquid level of the colored solution inside the U-shaped liquid storage tube 301 can be monitored in real time through the plurality of linearly arranged light detectors 403, and then the corresponding liquid levels of the colored solution at different time points are recorded and calculated, so as to realize the precise measurement operation of the specific surface area of ​​the cement sample.

[0035] See also Figures 3 to 6 The air extraction measuring mechanism 3 includes a connecting elbow 306, which is fixedly connected to the two positioning clamps 111, a sample positioning sleeve 307 is installed at the rear end of the connecting elbow 306, a spherical connecting pipe 302 is installed at the bottom end of the connecting elbow 306, a U-shaped liquid storage tube 301 is fixedly installed at the bottom end of the spherical connecting pipe 302, and the connecting elbow 306 is connected to the spherical connecting pipe 302 through a sealing connecting seat 110, and a sealing connection is provided between the sealing connecting seat 110 and the spherical connecting pipe 302 and the connecting elbow 306. The sealing connection seat 110 is fixedly connected to the protection installation box 102, the middle part of the connecting elbow 306 is fixedly connected to the protection installation box 102 through two positioning clamps 111, the rear end of the connecting elbow 306 is connected to the sample positioning sleeve 307, and the rear end height of the connecting elbow 306 is lower than the middle part height of the connecting elbow 306. The connecting elbow 306 can prevent the cement sample from being pressed and falling into the inner side of the U-shaped liquid storage tube 301, and effectively maintain the purity of the colored solution inside the U-shaped liquid storage tube 301;

[0036] A positioning arc groove is provided on one side of the vibration damping strip 108, a U-shaped liquid storage tube 301 is plugged into the inner side of the positioning arc groove, the transparent cover 103 is connected to the U-shaped liquid storage tube 301 through the vibration damping strip 108, a gas hose 303 is installed on one side of the spherical connecting tube 302, the inner side of the U-shaped liquid storage tube 301 is filled with a colored solution, the U-shaped liquid storage tube 301, the spherical connecting tube 302 and the gas hose 303 are connected through, and a solenoid valve 303 is installed at the bottom of the gas hose 303 4. An air pump 305 is installed on one side of the solenoid valve 304, and the air delivery hose 303 is connected to the input end of the air pump 305. The air pump 305 is fixedly connected to the protective installation box 102. The air pump 305, the solenoid valve 304 and the display screen 105 are electrically connected, so that the air pump 305 evacuates the inner side of the U-shaped liquid storage tube 301 through the air delivery hose 303 and the spherical connecting tube 302, thereby achieving a negative pressure state on the inner side of the U-shaped liquid storage tube 301.

[0037] See also Figure 2 , Figure 6 and Figure 8 A material storage isolation mechanism 2 is installed on the rear end face of the air extraction measurement mechanism 3, and the material storage isolation mechanism 2 includes four guide slides 205, and the four guide slides 205 are fixedly connected to the protection installation box 102. A material storage protection frame 201 is installed between the four guide slides 205, and the material storage protection frame 201 is slidably connected to the protection installation box 102 through the four guide slides 205. The transparent cover 103 and the material storage protection frame 201 are made of acrylic. Two sample placement plates 204 are installed on the inner side of the material storage protection frame 201, and the material storage protection frame 201 is installed by snapping with the two sample placement plates 204. The guidance of the guide slides 205 facilitates the material storage protection frame 201 to drive the sample placement plates 204 to take and place cement samples;

[0038] A locking knob 202 is installed at the upper end of the material storage protection frame 201, and a ventilation sheet 203 is installed on one side of the locking knob 202. The ventilation sheet 203 is connected with the sample positioning sleeve 307. The front end of the locking knob 202 passes through the material storage protection frame 201 and is threadedly connected to the protection installation box 102. The upper end of the material storage protection frame 201 is fixedly connected to the protection installation box 102 through the locking knob 202. The locking knob 202 is used to facilitate fixing the material storage protection frame 201, and then the material storage protection frame 201 is convenient for pressing and fixing the cement sample inside the sample positioning sleeve 307.

[0039] See also Figure 2 and Figure 7A ventilation and heat preservation mechanism 5 is installed on one side of the multi-point monitoring mechanism 4, and the ventilation and heat preservation mechanism 5 includes a heat preservation gas delivery box 501, and an input cone sleeve 502 and an output cone sleeve 503 are fixedly installed on the left end of the heat preservation gas delivery box 501, and the input cone sleeve 502 is located directly above the output cone sleeve 503. Two fan boxes 505 are fixedly installed on the right end of the heat preservation gas delivery box 501, and a radiator 504 is fixedly installed on the inner side of the middle part of the heat preservation gas delivery box 501. The interior of the radiator 504 is filled with a heat conducting medium, and an electric heat resistance wire is fixedly provided on the inner side of the radiator 504, so that the temperature of the airflow input to the inner side of the measuring chamber can be adjusted and kept stable through the heat conducting medium and the electric heat resistance wire, so as to avoid the influence of temperature when the cement sample is measured;

[0040] The heat-insulating gas delivery box 501 is connected to the measuring chamber through the input cone sleeve 502 and the output cone sleeve 503. The heat-insulating gas delivery box 501 is fixedly connected to the protective installation box 102 through the input cone sleeve 502 and the output cone sleeve 503. A temperature sensor is provided on the inner side of the output cone sleeve 503. The airflow directions on the inner sides of the two fan boxes 505 are opposite. The two fan boxes 505 can circulate and transport the air in the measuring chamber through the input cone sleeve 502 and the output cone sleeve 503.

[0041] In summary, the U-shaped liquid storage tube 301 is fixedly connected to the monitoring box 401 through multiple light detectors 403, and the spherical connecting tube 302 and the connecting elbow 306 are fixedly connected to the protective installation box 102 through the sealing connecting seat 110, so that the U-shaped liquid storage tube 301, the spherical connecting tube 302, the gas hose 303, the connecting elbow 306 and the sample positioning sleeve 307 are all connected through, the power is turned on, and the cement sample to be measured is placed on the inner side of the sample positioning sleeve 307, so that the material storage protection frame 201 is fixedly connected to the protective installation box 102 through the locking knob 202 and the cement sample is pressed and fixed on the inner side of the sample positioning sleeve 307 through the ventilation sheet 203, and the transparent cover 103 is magnetically connected to the protective installation box 102 through two magnetic blocks 104;

[0042] A measuring chamber is provided between the transparent cover 103 and the protective installation box 102. Two fan boxes 505 installed in opposite directions are started so that the two fan boxes 505 can draw external air through the input cone sleeve 502 and the output cone sleeve 503 and transport it to the inner side of the measuring chamber and discharge it. The interior of the radiator 504 is filled with a heat-conducting medium, and an electric thermal resistance wire is installed on the inner side of the radiator 504, so that the temperature of the airflow input to the inner side of the measuring chamber can be adjusted and kept stable through the heat-conducting medium and the electric thermal resistance wire, so as to avoid the influence of temperature when the cement sample is measured.

[0043] Start the air pump 305, fill the U-shaped liquid storage tube 301 with colored solution, so that the air pump 305, under the support of the protective installation box 102, evacuates the inner side of the U-shaped liquid storage tube 301 through the air hose 303 and the spherical connecting tube 302, and then when the inner side of the U-shaped liquid storage tube 301 is in a negative pressure state, the colored solution moves from the inner side of the U-shaped liquid storage tube 301 to the end where the connecting elbow 306 is installed, and then the air hose 303 is blocked by the solenoid valve 304. When the inner sides of the U-shaped liquid storage tube 301, the spherical connecting tube 302 and the connecting elbow 306 are in a negative pressure state, the external air is transported to the inner side of the connecting elbow 306 through the ventilation sheet 203 and the cement sample;

[0044] The liquid level of the colored solution inside the U-shaped liquid storage tube 301 gradually decreases, and a plurality of light detectors 403 are installed inside the monitoring box 401, and the front end of the light detector 403 penetrates the monitoring box 401 and is in close contact with the U-shaped liquid storage tube 301, so that the liquid level of the colored solution inside the U-shaped liquid storage tube 301 can be monitored in real time through the plurality of linearly arranged light detectors 403, and then the corresponding liquid levels of the colored solution at different time points are recorded and calculated, so as to realize the precise measurement operation of the specific surface area of ​​the cement sample;

[0045] The rear end height dimension of the connecting elbow 306 is lower than the middle part height dimension of the connecting elbow 306, so that during the measurement of the cement sample, the connecting elbow 306 can prevent the cement sample residue from being pressed and falling into the inner side of the U-shaped liquid storage tube 301, thereby effectively maintaining the purity of the colored solution inside the U-shaped liquid storage tube 301, and facilitating repeated and accurate measurement.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An automatic cement specific surface area measuring instrument, comprising a protection display mechanism (1), an air extraction measuring mechanism (3), a multi-point monitoring mechanism (4) and a ventilation and heat preservation mechanism (5), characterized in that: An air extraction measuring mechanism (3) is installed on the inner side of the protection display mechanism (1), a multi-point monitoring mechanism (4) is installed on the bottom end of the air extraction measuring mechanism (3), a ventilation and heat preservation mechanism (5) is installed on one side of the multi-point monitoring mechanism (4), a material storage isolation mechanism (2) is installed on the rear end surface of the air extraction measuring mechanism (3), and the protection display mechanism (1) comprises a support base (101), a protection installation box (102) is fixedly installed on the upper end surface of the support base (101), and two positioning clamping plates (111) are fixedly installed on the front end surface of the upper part of the protection installation box (102); The multi-point monitoring mechanism (4) comprises a monitoring box (401), the monitoring box (401) is fixedly connected to the protective installation box (102), a plurality of light detectors (403) are installed on the inner side of the monitoring box (401), and a plurality of elastic clips (402) are installed on the front end surface of the monitoring box (401); The air extraction measurement mechanism (3) comprises a connecting elbow (306), wherein the connecting elbow (306) is fixedly connected to two positioning clamps (111), a sample positioning sleeve (307) is installed at the rear end of the connecting elbow (306), a spherical connecting tube (302) is installed at the bottom end of the connecting elbow (306), a U-shaped liquid storage tube (301) is fixedly installed at the bottom end of the spherical connecting tube (302), a gas supply hose (303) is installed at one side of the spherical connecting tube (302), a solenoid valve (304) is installed at the bottom end of the gas supply hose (303), and an air pump (305) is installed at one side of the solenoid valve (304).

2. The automatic cement specific surface area measuring instrument according to claim 1, characterized in that: The protective display mechanism (1) also includes a transparent cover (103) rotatably connected to the protective installation box (102), two magnetic blocks (104) are fixedly provided on the side of the transparent cover (103), a vibration-damping strip (108) is fixedly installed on the inner side of the transparent cover (103), a display screen (105) and a key control area (106) are fixedly installed on the front face of the protective installation box (102), the display screen (105) is located directly above the key control area (106), a ventilation plate (107) is fixedly installed on the right side of the protective installation box (102), a partition frame (109) is fixedly installed on the inner side of the support base (101), and a sealing connection seat (110) is installed on the left side of the protective installation box (102).

3. The automatic cement specific surface area measuring instrument according to claim 2, characterized in that: The material storage isolation mechanism (2) comprises four guide slides (205), the four guide slides (205) are fixedly connected to the protection installation box (102), a material storage protection frame (201) is installed between the four guide slides (205), two sample placement plates (204) are installed on the inner side of the material storage protection frame (201), a locking knob (202) is installed at the upper end of the material storage protection frame (201), and a ventilation sheet (203) is installed on one side of the locking knob (202).

4. The automatic cement specific surface area measuring instrument according to claim 2, characterized in that: The ventilation and heat preservation mechanism (5) comprises a heat preservation gas delivery box (501), an input cone sleeve (502) and an output cone sleeve (503) are fixedly mounted on the left end of the heat preservation gas delivery box (501), the input cone sleeve (502) is located directly above the output cone sleeve (503), two fan boxes (505) are fixedly mounted on the right end of the heat preservation gas delivery box (501), and a radiator (504) is fixedly mounted on the inner side of the middle part of the heat preservation gas delivery box (501).

5. The automatic cement specific surface area measuring instrument according to claim 2, characterized in that: The upper and lower ends of the transparent cover (103) are magnetically connected to the protective installation box (102) via a magnetic block (104); the transparent cover (103) and the material storage protective frame (201) are both made of acrylic; a positioning arc groove is provided on one side of the vibration damping strip (108); the U-shaped liquid storage tube (301) is plugged into the inner side of the positioning arc groove; and the transparent cover (103) and the U-shaped liquid storage tube (301) are connected via the vibration damping strip (108).

6. The automatic cement specific surface area measuring instrument according to claim 4, characterized in that: A measuring cavity is formed between the transparent cover (103) and the protective installation box (102); the heat-insulating gas delivery box (501) and the measuring cavity are connected through the input conical sleeve (502) and the output conical sleeve (503); the heat-insulating gas delivery box (501) and the protective installation box (102) are fixedly connected through the input conical sleeve (502) and the output conical sleeve (503); the interior of the radiator (504) is filled with a heat-conducting medium; an electric thermal resistance wire is fixedly provided on the inner side of the radiator (504); a temperature sensor is provided on the inner side of the output conical sleeve (503); and the airflow directions on the inner sides of the two fan boxes (505) are opposite.

7. The automatic cement specific surface area measuring instrument according to claim 1, characterized in that: The monitoring box (401) is fixedly connected to the U-shaped liquid storage tube (301) via a plurality of elastic clips (402); the front end of the light detector (403) passes through the monitoring box (401) and is in close contact with the U-shaped liquid storage tube (301); the light detector (403) and the elastic clips (402) are installed correspondingly.

8. The automatic cement specific surface area measuring instrument according to claim 2, characterized in that: The inner side of the U-shaped liquid storage tube (301) is filled with a colored solution. The U-shaped liquid storage tube (301), the spherical connecting tube (302) and the gas supply hose (303) are connected in a continuous manner. The gas supply hose (303) is connected in a continuous manner to the input end of the air pump (305). The air pump (305) is fixedly connected to the protective installation box (102). The air pump (305), the solenoid valve (304) and the display screen (105) are electrically connected.

9. The automatic cement specific surface area measuring instrument according to claim 8, characterized in that: The connecting elbow (306) is connected to the spherical connecting tube (302) via a sealing connecting seat (110), and sealing rings are provided between the sealing connecting seat (110), the spherical connecting tube (302) and the connecting elbow (306). The sealing connecting seat (110) is fixedly connected to the protective installation box (102), and the middle part of the connecting elbow (306) is fixedly connected to the protective installation box (102) via two positioning clamps (111). The rear end of the connecting elbow (306) is connected to the sample positioning sleeve (307), and the rear end height of the connecting elbow (306) is lower than the middle part height of the connecting elbow (306).

10. The automatic cement specific surface area measuring instrument according to claim 3, characterized in that: The material storage protection frame (201) is slidably connected to the protection installation box (102) via four guide slides (205); the material storage protection frame (201) is snap-fitted to two sample placement plates (204); the ventilation sheet (203) is connected to the sample positioning sleeve (307); the front end of the locking knob (202) passes through the material storage protection frame (201) and is threadedly connected to the protection installation box (102); the upper end of the material storage protection frame (201) is fixedly connected to the protection installation box (102) via the locking knob (202).

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