Cement chemical analysis and detection device

The electric-driven syringe system with an L-shaped mounting base and a U-shaped frame solves the fatigue problem caused by hand-held burettes in cement chemical analysis and testing devices, and realizes the convenience and uniformity of automated titration operation.

CN224035352UActive Publication Date: 2026-03-24PUER KUNGANG JIAHUA CEMENT BUILDING MATERIALS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

In existing cement chemical analysis and testing equipment, holding the burette valve during titration operations can easily cause hand fatigue and make precise control difficult, affecting the ease of operation.

Method used

The device uses an L-shaped mounting base and a U-shaped frame in conjunction with a syringe and injection tube. The titration is electrically driven through an injection mechanism. Combined with a motor and gear transmission system, it achieves automated titration operation, reduces hand fatigue, and ensures the uniformity of the titrant.

Benefits of technology

It eliminates the need for prolonged hand-held burette and valve control, reducing hand fatigue, improving the convenience of titration operations and the uniformity of the titrant, and simplifying the process of titrant replacement and replenishment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224035352U_ABST
    Figure CN224035352U_ABST
Patent Text Reader

Abstract

The utility model discloses a chemical analysis and detection device for cement. The chemical analysis and detection device comprises an injection head, according to the cement chemical analysis and detection device, a concentric-square-shaped frame is fixedly installed on the upper portion of an L-shaped installation frame, an injector is placed on the inner side of the concentric-square-shaped frame, the injector is an existing injector, the concentric-square-shaped frame is provided with an injection mechanism corresponding to the injector, the liquid outlet end of the injector is fixedly connected with a liquid conveying hose, and the bottom end of the liquid conveying hose is fixedly connected with an injection pipe. The injection tube movably penetrates through the bottom edge of the L-shaped mounting frame and is fixedly connected with an injection head, a reaction flask is arranged below the L-shaped mounting seat corresponding to the injection head, the L-shaped mounting frame is matched with the concentric-square-shaped frame to mount the injector and the injection tube, and electric driving injection is performed through the injection mechanism, so that titration operation is performed. The burette does not need to be held by hand and a burette valve does not need to be operated for a long time, hand fatigue is reduced, meanwhile, continuous slow titration filling is formed, valve control is not needed, and titration operation is more convenient.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to cement detection technical field, concretely is a cement chemical analysis detection device. BACKGROUND

[0002] Cement is an important component in building materials, and the analysis of its chemical composition is of great significance for production and quality control. The chemical composition of cement mainly includes calcium oxide, silicon dioxide, aluminum oxide, iron oxide, etc. Therefore, a series of analysis methods are needed to accurately determine the content of its components.

[0003] Lime effective calcium oxide determination is a commonly used analysis method for determining the content of calcium oxide in lime. Lime is an important building material and industrial raw material, and its accurate determination of quality is of great significance for production and application.

[0004] The principle of lime effective calcium oxide determination is based on the chemical reaction of calcium oxide and sulfuric acid to generate calcium sulfate. In the experiment, first, the calcium oxide in the lime sample needs to be reacted with excess sulfuric acid to generate calcium sulfate. Then, through subsequent titration reaction, the amount of unreacted sulfuric acid is determined, and the content of calcium oxide is calculated.

[0005] When titration detection is carried out, it is carried out through a burette, and the valve at the bottom of the burette is opened for operation during titration. It is necessary to continuously hold the valve part of the burette for operation, which can easily cause hand fatigue, and there is also a problem that the valve cannot be controlled well. Therefore, a cement chemical analysis detection device optimizes the existing cement chemical analysis titration operation. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a cement chemical analysis detection device to solve the problems raised in the background.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] The utility model provides a cement chemical analysis detection device, including L-shaped mounting seat, the top of the front side of L-shaped mounting seat is equipped with L-shaped mounting frame, the upper portion of L-shaped mounting frame is fixedly installed with the back -shaped frame, the inside of back -shaped frame places with syringe, syringe adopts existing syringe, back -shaped frame is equipped with injection mechanism with syringe, the liquid outlet of syringe is fixedly connected with infusion hose, the bottom of infusion hose is fixedly connected with injection pipe, injection pipe moves through the bottom edge of L-shaped mounting frame and is fixedly connected with injection head, the below of L-shaped mounting seat is equipped with reaction flask with injection head, injection mechanism includes push board, and push board corresponds with the piston handle of syringe, the both sides of push board are fixedly connected with sliding block, and sliding block is arranged as I-shaped, and the sliding groove is set up in back -shaped frame with the sliding block, and sliding block is slidably connected in sliding groove and is matched with sliding groove, the top surface of push board is fixedly connected with first threaded rod, and the outside of first threaded rod is threadedly provided with the first threaded sleeve matched with it, and first threaded sleeve rotates and is connected on back -shaped frame, and the top of first threaded sleeve is fixedly connected with worm wheel, and the outside of worm wheel is equipped with the worm that is engaged transmission with it, and worm is rotatably installed on the top surface of back -shaped frame, and worm is fixedly installed on the output end of step motor, and step motor is fixedly installed on the top surface of back -shaped frame.

[0009] As a further scheme of the utility model: the bottom of the back -shaped frame is equipped with the U-shaped gap corresponding with the syringe, and the outside of the U-shaped gap is symmetrically provided with the positioning stop edge corresponding with the barrel of the syringe, and the positioning stop edge is fixedly connected to the inside of the bottom of the back -shaped frame, and the barrel of the syringe is inserted into the stop edge to form a positioning effect.

[0010] As a further scheme of the utility model: a Robert tube clamp is connected to the infusion hose.

[0011] As a further scheme of the utility model: a stop ring is fixedly connected to the top end of the injection pipe, a circular hole for the injection pipe to pass through is formed in the L-shaped mounting frame, a nut is threadedly connected to the lower portion of the injection pipe, and the outer wall of the injection pipe is provided with external threads.

[0012] As a further scheme of the utility model: two guide rails are symmetrically fixedly connected to the L-shaped mounting frame, a sliding seat is symmetrically fixedly connected to the L-shaped mounting frame, the sliding seat is slidably connected to the guide rails, a second threaded rod is arranged between the two guide rails, the second threaded rod is rotatably installed on the L-shaped mounting seat, a first motor is fixedly installed on the L-shaped mounting seat corresponding to the end portion of the second threaded rod, the first motor is fixedly connected to the second threaded rod, a second threaded sleeve matched with the second threaded rod is threadedly connected to the outside of the second threaded rod, and the second threaded sleeve is fixedly connected to the L-shaped mounting frame.

[0013] As a further scheme of the utility model: the L-shaped mounting seat is rotatably provided with a rotating seat corresponding to the reaction flask, the bottom of the rotating seat is fixedly connected with a first gear, the outer side of the first gear is provided with a second gear in meshing transmission with the first gear, the second gear is fixedly connected with the output end of a second motor, the second motor is fixedly installed on the back of the L-shaped mounting seat, and the bottom of the L-shaped mounting seat is fixedly connected with a U-shaped pad seat.

[0014] As a further scheme of the utility model: the rotating seat is fixedly connected with a positioning ring matched with the reaction flask, a notch groove is formed in the positioning ring, a pressing block matched with the reaction flask is slidably connected in the notch groove, a threaded knob is threadedly connected with the pressing block, the pressing block is provided with a threaded hole for threadedly connecting the threaded knob, and the threaded knob is rotatably installed on the positioning ring.

[0015] As a further scheme of the utility model: the front side of the L-shaped mounting seat is fixedly connected with a control switch, the control switch is electrically connected with the stepping motor, the first motor and the second motor through wires, the control switch is externally connected with a power supply through wires, the switch corresponding to the stepping motor on the control switch is pressed once, the stepping motor rotates one circle, the first motor and the second motor are started after the switch corresponding to the first motor and the second motor on the control switch is pressed, and the first motor and the second motor stop running after being pressed again.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1、The utility model discloses a kind of titration devices, including reaction flask, L-shaped mounting seat, injection mechanism, injection tube, injection device, U-shaped gap, positioning stop edge, first motor, second motor, stepping motor, control switch, sliding seat, guide rail, first screw rod, second screw rod, rotating seat, positioning ring, threaded knob, pressing block, threaded hole, notch groove, injection mechanism is installed on the L-shaped mounting seat, and injection mechanism is connected with injection device, injection tube is fixedly connected with injection device, and injection device is placed in reaction flask.

[0018] 2、The utility model discloses a kind of titration devices, including reaction flask, L-shaped mounting seat, injection mechanism, injection tube, injection device, U-shaped gap, positioning stop edge, first motor, second motor, stepping motor, control switch, sliding seat, guide rail, first screw rod, second screw rod, rotating seat, positioning ring, threaded knob, pressing block, threaded hole, notch groove, injection mechanism is installed on the L-shaped mounting seat, and injection mechanism is connected with injection device, injection tube is fixedly connected with injection device, and injection device is placed in reaction flask.

[0019] 3、The utility model discloses a kind of titration devices, including reaction flask, L-shaped mounting seat, injection mechanism, injection tube, injection device, U-shaped gap, positioning stop edge, first motor, second motor, stepping motor, control switch, sliding seat, guide rail, first screw rod, second screw rod, rotating seat, positioning ring, threaded knob, pressing block, threaded hole, notch groove, injection mechanism is installed on the L-shaped mounting seat, and injection mechanism is connected with injection device, injection tube is fixedly connected with injection device, and injection device is placed in reaction flask.

[0020] 4、The utility model discloses a kind of titration devices, including reaction flask, L-shaped mounting seat, injection mechanism, injection tube, injection device, U-shaped gap, positioning stop edge, first motor, second motor, stepping motor, control switch, sliding seat, guide rail, first screw rod, second screw rod, rotating seat, positioning ring, threaded knob, pressing block, threaded hole, notch groove, injection mechanism is installed on the L-shaped mounting seat, and injection mechanism is connected with injection device, injection tube is fixedly connected with injection device, and injection device is placed in reaction flask. EXPLANATION OF DRAWINGS

[0021] Fig. 1 It is a cement chemical analysis detection device structure schematic view.

[0022] Fig. 2 It is a cement chemical analysis detection device back view.

[0023] Fig. 3 It is a cement chemical analysis detection device sectional view.

[0024] Fig. 4 It is a cement chemical analysis detection device A enlarged view.

[0025] In the figure: 1, L-shaped mounting seat; 2, L-shaped mounting frame; 3, back-shaped frame; 4, syringe; 5, injection mechanism; 6, infusion hose; 7, injection tube; 8, injection head; 9, reaction flask; 10, push plate; 11, sliding block; 12, sliding groove; 13, first threaded rod; 14, first threaded sleeve; 15, worm wheel; 16, worm; 17, stepper motor; 18, U-shaped notch; 19, positioning rib; 20, Robert tube clamp; 21, stop ring; 22, nut; 23, guide rail; 24, sliding seat; 25, first motor; 26, rotating seat; 27, first gear; 28, second gear; 29, second motor; 30, U-shaped pad seat; 31, positioning ring; 32, notch groove; 33, extrusion block; 34, threaded knob; 35, control switch; 36, second threaded rod; 37, second threaded sleeve. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figs. 1-4The utility model discloses an embodiment of cement chemical analysis detection device, including L shape mounting seat 1, the front upper side of L shape mounting seat 1 is equipped with L shape mounting bracket 2, the upper fixed mounting of L shape mounting bracket 2 has back -shaped frame 3, the inside of back -shaped frame 3 places syringe 4, syringe 4 adopts existing syringe, back -shaped frame 3 is equipped with injection mechanism 5 corresponding syringe 4, the liquid outlet of syringe 4 is fixedly connected with infusion hose 6, the bottom of infusion hose 6 is fixedly connected with injection tube 7, injection tube 7 mobilely penetrates the bottom edge of L shape mounting bracket 2 and is fixedly connected with injection head 8, the below of L shape mounting seat 1 is equipped with reaction flask 9 corresponding injection head 8, injection mechanism 5 includes push -plate 10, push -plate 10 with the piston handle corresponding of syringe 4, the both sides symmetrical fixed connection of push -plate 10 has sliding block 11, sliding block 11 is I -shaped setting, the sliding slot 12 of back -shaped frame 3 is opened corresponding sliding block 11, sliding block 11 slidingly connects in sliding slot 12 and with sliding slot 12 is matched, the top surface fixed connection of push -plate 10 has first threaded rod 13, the outside screw thread of first threaded rod 13 is equipped with with its matched first threaded sleeve 14, first threaded sleeve 14 rotationally penetrates and is connected on back -shaped frame 3, the top fixed connection of first threaded sleeve 14 has worm wheel 15, the outside of worm wheel 15 is equipped with with its meshing transmission worm 16, worm 16 rotationally installs on the top surface of back -shaped frame 3, worm 16 fixedly installs on the output of stepping motor 17, and stepping motor 17 fixedly installs on the top surface of back -shaped frame 3.

[0028] Through L shape mounting bracket 2 cooperation back -shaped frame 3 installs syringe 4 and injection tube 7, through injection mechanism 5 carries out electric drive injection, to carry out titration operation, need not long -time handheld burette and operation burette valve, reduce the tired condition of hand, slow titration filling is formed continuously simultaneously, need not valve control, make titration operation more convenient.

[0029] The bottom of back -shaped frame 3 is equipped with U -shaped notch 18 corresponding syringe 4, the outside symmetrical of U -shaped notch 18 is equipped with with the barrel corresponding positioning baffle 19 of syringe 4, positioning baffle 19 fixedly connects in the bottom inside of back -shaped frame 3, the barrel of syringe 4 inserts into baffle 19 and forms positioning effect.

[0030] Infusion hose 6 is connected with Robert pipe clamp 20.

[0031] The top of injection tube 7 is fixedly connected with stop ring 21, and a circular hole for the injection tube 7 to penetrate and move is formed in the L-shaped mounting bracket 2. The injection tube 7 is threadedly connected with a nut 22 below the L-shaped mounting bracket 2. The outer wall of the injection tube 7 is provided with external threads.

[0032] The injector 4 is placed through the U-shaped notch 18 and the positioning stop 19, and the injection tube 7 is clamped and fixedly connected to the L-shaped mounting frame 2 through the cooperation of the stop ring 21 and the nut 22, so that the combination of the injector 4 and the injection tube 7 can be conveniently disassembled, and then the titration solution is replaced and supplemented.

[0033] The L-shaped mounting seat 1 is symmetrically and fixedly connected with two guide rails 23, the L-shaped mounting frame 2 is symmetrically and fixedly connected with sliding seats 24, the sliding seats 24 are slidingly connected to the guide rails 23, a second threaded rod 36 is arranged between the two guide rails 23, the second threaded rod 36 is rotatably installed on the L-shaped mounting seat 1, the L-shaped mounting seat 1 is fixedly installed with a first motor 25 corresponding to the end of the second threaded rod 36, the first motor 25 is fixedly connected with the second threaded rod 36, and a second threaded sleeve 37 matched with the second threaded rod 36 is threadedly connected to the outer side of the second threaded rod 36.

[0034] The first motor 25 drives the second threaded rod 36 to rotate, and then drives the L-shaped mounting frame 2 to slide through the sliding seats 24 along the guide rails 23, and drives the injection tube 7 to downwardly insert into the reaction flask 9.

[0035] The L-shaped mounting seat 1 is rotatably installed with a rotating seat 26 corresponding to the reaction flask 9, the rotating seat 26 is fixedly connected with a first gear 27 at the bottom, the first gear 27 is provided with a second gear 28 in meshing transmission on the outer side, the second gear 28 is fixedly connected to the output end of a second motor 29, the second motor 29 is fixedly installed on the back of the L-shaped mounting seat 1, and the bottom of the L-shaped mounting seat 1 is fixedly connected with a U-shaped base 30.

[0036] The rotating seat 26 is fixedly connected with a positioning ring 31 matched with the reaction flask 9, the positioning ring 31 is provided with a notch groove 32, the notch groove 32 is slidingly connected with an extrusion block 33 matched with the reaction flask 9, the extrusion block 33 is threadedly connected with a threaded knob 34, the extrusion block 33 is provided with a threaded hole for threadedly connecting the threaded knob 34, and the threaded knob 34 is rotatably installed on the positioning ring 31.

[0037] Through the rotation of the threaded knob 34, the extrusion block 33 can be driven to fix the reaction flask 9 in the positioning ring 31, and further through the driving of the second motor 29, the second gear 28 drives the first gear 27 to rotate, so that the rotating seat 26 rotates, and then the reaction flask 9 is driven to rotate, improving the uniformity of titration liquid contact during titration.

[0038] The front side of the L-shaped mounting base 1 is fixedly connected with a control switch 35, the control switch 35 is electrically connected with the stepping motor 17, the first motor 25 and the second motor 29 through wires, the control switch 35 is externally connected with a power supply through wires, and the switch corresponding to the stepping motor 17 on the control switch 35 is pressed once every time the stepping motor rotates one circle, and the switches corresponding to the first motor 25 and the second motor 29 on the control switch 35 are pressed to start the first motor 25 and the second motor 29, and the first motor 25 and the second motor 29 stop running after being pressed again.

[0039] The working principle of the utility model is:

[0040] In use, the cement sample is dissolved in hydrochloric acid, and then filtered, the filtered solution is added to the reaction flask 9, the reaction flask 9 is placed in the positioning ring 31, and the threaded knob 34 is further rotated to drive the extrusion block 33 to extrude and fix the reaction flask 9, at this time, the phenolphthalein indicator is added to the reaction flask 9, so that the solution in the reaction flask 9 is colored, at this time, the injection tube 7 is further penetrated through the L-shaped mounting bracket 2, and the syringe 4 is placed in the back-shaped frame 3 through the U-shaped gap 18, at this time, the nut 22 is screwed on the injection tube 7, and the syringe 4 is inserted between the positioning ribs 19, at this time, the corresponding switch of the stepping motor 17 on the control switch 35 is continuously pressed for multiple times, the stepping motor 17 drives the worm 16 to rotate, the worm 16 drives the first threaded sleeve 14 to rotate through the worm gear 15, under the guidance of the sliding groove 12 and the sliding block 11, the rotating first threaded sleeve 14 drives the push plate 10 to abut against the push handle of the syringe 4 through the first threaded rod 13, at this time, the corresponding switch of the first motor 25 on the control switch 35 is further pressed, the first motor 25 drives the second threaded rod 36 to rotate, at this time, under the guidance of the guide rail 23 and the sliding seat 24, the rotating second threaded rod 36 drives the L-shaped mounting bracket 2 to move through the second threaded sleeve 37, so that the injection tube 7 and the injection head 8 are inserted into the reaction flask 9, at this time, the corresponding switch of the first motor 25 on the control switch 35 is pressed again to make the first motor 25 stop working, the corresponding switch of the second motor 29 on the control switch 35 is further pressed, the second motor 29 drives the second gear 28 to rotate, the second gear 28 drives the rotating seat 26 to rotate through the first gear 27, so as to rotate the reaction flask 9, the Robert tube clamp 20 is opened, at this time, the corresponding switch of the stepping motor 17 on the control switch 35 is further pressed, the stepping motor 17 drives the worm 16 to rotate, the worm 16 drives the first threaded sleeve 14 to rotate through the worm gear 15, under the guidance of the sliding groove 12 and the sliding block 11, the rotating first threaded sleeve 14 drives the push plate 10 to push the push handle of the syringe 4 through the first threaded rod 13, the alkaline solution in the syringe 4 is extruded out, enters the injection tube 7 through the infusion hose 6, and is titrated into the reaction flask 9 through the injection head 8 to perform the acid-base neutralization titration reaction, the corresponding switch of the stepping motor 17 on the control switch 35 is repeatedly operated for multiple times to continuously titrate, the titration amount is measured each time, and the color in the reaction flask 9 disappears until the content of the calcium oxide is calculated, so as to perform the cement chemical analysis.

[0041] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A cement chemical analysis and testing device, comprising an L-shaped mounting base (1), characterized in that: An L-shaped mounting bracket (2) is provided on the upper front side of the L-shaped mounting base (1). A spiral frame (3) is fixedly installed on the upper part of the L-shaped mounting bracket (2). A syringe (4) is placed inside the spiral frame (3). An injection mechanism (5) is provided on the spiral frame (3) corresponding to the syringe (4). An infusion tubing (6) is fixedly connected to the liquid outlet end of the syringe (4). An injection tube (7) is fixedly connected to the bottom end of the infusion tubing (6). The injection tube (7) movably passes through the bottom edge of the L-shaped mounting bracket (2) and is fixedly connected to an injection head (8). A reaction flask (9) is provided below the injection head (8) corresponding to the L-shaped mounting base (1). The injection mechanism (5) includes a push plate (10). The push plate (10) corresponds to the piston handle of the syringe (4). Slider blocks (10) are symmetrically fixedly connected to both sides of the push plate (10). 1) A groove (12) is provided on the circular frame (3) corresponding to the slider (11). The slider (11) is slidably connected in the groove (12) and is adapted to the groove (12). A first threaded rod (13) is fixedly connected to the top surface of the push plate (10). A first threaded sleeve (14) is threaded on the outer side of the first threaded rod (13) and adapted to it. The first threaded sleeve (14) is rotatably connected to the circular frame (3). A worm wheel (15) is fixedly connected to the top of the first threaded sleeve (14). A worm (16) is provided on the outer side of the worm wheel (15) and meshes with it for transmission. The worm (16) is rotatably installed on the top surface of the circular frame (3). The worm (16) is fixedly installed on the output end of the stepper motor (17). The stepper motor (17) is fixedly installed on the top surface of the circular frame (3).

2. The cement chemical analysis and testing device according to claim 1, characterized in that: The bottom of the spiral frame (3) is provided with a U-shaped notch (18) corresponding to the syringe (4). The outer side of the U-shaped notch (18) is symmetrically provided with a positioning stop (19) corresponding to the barrel of the syringe (4). The positioning stop (19) is fixedly connected to the inner side of the bottom of the spiral frame (3).

3. The cement chemical analysis and testing device according to claim 1, characterized in that: The infusion tubing (6) is connected to a Robert clamp (20).

4. The cement chemical analysis and testing device according to claim 1, characterized in that: The top end of the injection tube (7) is fixedly connected to a stop ring (21), and the L-shaped mounting bracket (2) has a round hole for the injection tube (7) to pass through and move. The lower part of the injection tube (7) located on the L-shaped mounting bracket (2) is threadedly connected to a nut (22).

5. A cement chemical analysis and testing device according to claim 1, characterized in that: The L-shaped mounting base (1) is symmetrically fixedly connected to two guide rails (23) for the L-shaped mounting frame (2). A sliding seat (24) is symmetrically fixedly connected to the L-shaped mounting frame (2). The sliding seat (24) is slidably connected to the guide rails (23). A second threaded rod (36) is provided between the two guide rails (23). The second threaded rod (36) is rotatably mounted on the L-shaped mounting base (1). A first motor (25) is fixedly mounted on the L-shaped mounting base (1) at the end corresponding to the second threaded rod (36). The first motor (25) is fixedly connected to the second threaded rod (36). A second threaded sleeve (37) that matches the second threaded rod (36) is threadedly connected to the outer side of the second threaded rod (36). The second threaded sleeve (37) is fixedly connected to the L-shaped mounting frame (2).

6. The cement chemical analysis and testing device according to claim 1, characterized in that: The L-shaped mounting base (1) is rotatably mounted on the reaction flask (9) with a rotating seat (26). The bottom of the rotating seat (26) is fixedly connected to a first gear (27). The outer side of the first gear (27) is provided with a second gear (28) that meshes with it for transmission. The second gear (28) is fixedly connected to the output end of the second motor (29). The second motor (29) is fixedly mounted on the back of the L-shaped mounting base (1). The bottom of the L-shaped mounting base (1) is fixedly connected to a U-shaped pad (30).

7. A cement chemical analysis and testing device according to claim 6, characterized in that: A positioning ring (31) adapted to the reaction flask (9) is fixedly connected to the rotating seat (26). A notch (32) is provided on the positioning ring (31). A pressing block (33) adapted to the reaction flask (9) is slidably connected in the notch (32). A threaded knob (34) is threaded through the pressing block (33). The threaded knob (34) is rotatably mounted on the positioning ring (31).

8. The cement chemical analysis and testing device according to claim 1, characterized in that: A control switch (35) is fixedly connected to the front side of the L-shaped mounting base (1).