Stirring machine feeding device for overlying strata separation layer grouting

Abstract

The utility model provides a feeding device of a stirring machine for overlying strata separation layer grouting, and belongs to the technical field of grouting stirring machines. The feeding device of the stirrer for overlying strata separation layer grouting comprises a stirring tank, a water inlet pipe and a feeding mechanism, the water inlet pipe is installed on the side wall of the stirring tank, a discharging pipe is installed at the bottom of the stirring tank, the feeding mechanism is installed on the surface of the stirring tank and comprises a first feeding pipe, a premixing cavity and a rotating shaft, and the first feeding pipe is installed on the surface of the stirring tank; the first feeding pipe is used for feeding cement, and a second feeding pipe is installed on the front portion of the first feeding pipe. According to the cement mixing device, the feeding mechanism is arranged, cement and admixtures are simultaneously fed into the premixing cavity through the first feeding pipe and the second feeding pipe, then the rotating shaft can be driven to rotate through the second motor, and therefore the cement and the admixtures are preliminarily mixed through the stirring rods; and the primarily-mixed raw materials are fed into the secondary mixing cavity through the second spiral blade, so that the raw materials are mixed in the feeding process, stacking of the raw materials is avoided, and the mixing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting mixers, in particular to a mixer feeding device for grouting of overburden rock separation layers. Background Art

[0002] Overburden delamination grouting is a reinforcement and stabilization treatment technology commonly used in geological engineering, especially in the fields of tunnel construction, foundation reinforcement and underground engineering. Its main purpose is to fill and seal the pores in the soil layer and increase the bearing capacity and stability of the soil.

[0003] The grouting used for overburden separation is usually a mixture of raw materials such as cement, admixtures and water. The existing mixer feeding device generally uses spiral blades to feed cement and admixtures into the mixing tank in sequence for mixing. The cement and admixtures are easy to stack and difficult to mix; and during the mixing process, the slurry is prone to generate bubbles, which affects the slurry strength. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a mixer feeding device for overburden rock separation grouting, which overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a mixer feeding device for overburden rock separation grouting, comprising a mixing tank, a water inlet pipe and a feeding mechanism, wherein the side wall of the mixing tank is provided with a water inlet pipe, the bottom of the mixing tank is provided with a discharge pipe, the feeding mechanism is provided on the surface of the mixing tank for feeding, and the feeding mechanism comprises:

[0007] A first feed pipe, the first feed pipe is installed on the surface of the stirring tank, a second feed pipe is installed on the surface of the stirring tank, and the first feed pipe and the second feed pipe are arranged in parallel;

[0008] A premixing chamber, wherein the premixing chamber is provided in the inner cavity of the stirring tank, and the first feeding pipe and the second feeding pipe are both connected to the premixing chamber;

[0009] A rotating shaft is rotatably mounted in the inner cavity of the stirring tank, and a plurality of stirring rods are mounted on the side wall of the rotating shaft.

[0010] In a preferred solution, a feeding bin is installed at one end of the first feeding pipe and the second feeding pipe, and a first spiral blade is rotatably installed in the inner cavity of the first feeding pipe and the second feeding pipe for feeding.

[0011] In a preferred embodiment, a bracket is fixedly mounted on the surface of the stirring tank, a first motor is fixedly mounted on the surface of the bracket, an output end of the first motor is fixedly connected to one end of one of the first spiral blades, pulleys are fixedly mounted on the surfaces of the two first spiral blades, and a belt is connected between the two pulleys.

[0012] In a preferred embodiment, a secondary mixing chamber is provided in the inner cavity of the stirring tank, a channel is provided between the secondary mixing chamber and the premixing chamber, a second motor is fixedly mounted on the surface of the stirring tank, and an output end of the second motor is fixedly connected to one end of the rotating shaft.

[0013] In a preferred solution, a scraper is symmetrically fixedly mounted on the side wall of the rotating shaft, the scraper is in contact with the inner wall of the stirring tank, and a second spiral blade is fixedly mounted on the surface of the rotating shaft, and the second spiral blade is located in the channel.

[0014] In a preferred embodiment, a debubbling mechanism is installed in the inner cavity of the stirring tank to eliminate bubbles generated during the stirring process. The debubbling mechanism includes a frame, stirring blades and bubble-piercing rods. The frame is fixedly mounted on the surface of the rotating shaft. Stirring blades are symmetrically fixedly mounted between the rotating shaft and the frame. The stirring blades are inclined, and the inclination directions of the stirring blades on both sides are opposite. A plurality of bubble-piercing rods are installed in the inner cavity of the frame.

[0015] In a preferred embodiment, abutment blocks are symmetrically fixedly installed on the side walls of the frame, a plurality of groups of connecting rods are symmetrically and slidably installed on the inner cavity of the mixing tank, contact blocks are fixedly installed between adjacent connecting rods, the abutment blocks and the contact block surfaces are both wedge-shaped, and an impact block is fixedly installed on the inner wall of the contact block.

[0016] In a preferred solution, a driving ring is fixedly mounted on one end of the connecting rod, a spring is fixedly mounted in the inner cavity of the stirring tank, one end of the spring is fixedly connected to the stirring tank, and the other end of the spring is fixedly connected to the driving ring.

[0017] The utility model provides a mixer feeding device for overburden rock separation grouting, and its beneficial effects include:

[0018] 1. By setting up a feeding mechanism, cement and admixture are simultaneously fed into the premixing chamber through the first feeding pipe and the second feeding pipe, and then the second motor can drive the rotating shaft to rotate, so that the cement and admixture are preliminarily mixed through the stirring rod, and the preliminarily mixed raw materials are fed into the secondary mixing chamber through the second spiral blade for subsequent stirring, so as to achieve mixing of the raw materials during the feeding process, avoid stacking of raw materials, and improve mixing efficiency.

[0019] 2. By setting up a defoaming mechanism, the second motor drives the rotating shaft to rotate, and the slurry is further stirred by the stirring blades. The contact block is impacted by the abutment block to compress the spring, and the impact block impacts the inner wall of the stirring tank to perform vibration defoaming. Part of the bubbles generated during the stirring process are directly burst, and the other part floats upward and is pierced by the bubble piercing rod to achieve defoaming and ensure the strength of the slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a stereogram provided by the embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the front cross-sectional structure provided for an embodiment of the utility model;

[0023] Figure 3 A schematic diagram of a side cross-sectional structure provided for an embodiment of the utility model;

[0024] Figure 4 The utility model embodiment provides Figure 3 Enlarged view of point A in the middle.

[0025] In the figure: 1, stirring tank; 2, water inlet pipe; 3, discharge pipe; 4, feeding mechanism; 401, first feeding pipe; 402, second feeding pipe; 403, loading bin; 404, first spiral blade; 405, bracket; 406, first motor; 407, pulley; 408, premixing chamber; 409, secondary mixing chamber; 410, channel; 411, rotating shaft; 412, second motor; 413, stirring rod; 414, scraper; 415, second spiral blade; 5, defoaming mechanism; 501, frame; 502, stirring blade; 503, bubble piercing rod; 504, abutment block; 505, connecting rod; 506, contact block; 507, impact block; 508, driving ring; 509, spring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1-4 The utility model provides a technical solution: a mixer feeding device for overburden delamination grouting, comprising a mixing tank 1, a water inlet pipe 2 and a feeding mechanism 4, the side wall of the mixing tank 1 is equipped with a water inlet pipe 2 for water inlet, the bottom of the mixing tank 1 is equipped with a discharge pipe 3, the feeding mechanism 4 is installed on the surface of the mixing tank 1 for feeding, the feeding mechanism 4 comprises a first feeding pipe 401, a premixing chamber 408 and a rotating shaft 411, the first feeding pipe 401 is installed on the surface of the mixing tank 1 for feeding cement, the surface of the mixing tank 1 is equipped with a second feeding pipe 402, the first feeding pipe 401 and the second feeding pipe 402 are arranged in parallel for feeding admixture, one end of the first feeding pipe 401 and the second feeding pipe 402 are both equipped with a feed bin 403, the first feeding pipe 401 and the second feeding pipe 402 The inner cavity is rotatably installed with a first spiral blade 404 for feeding, and a bracket 405 is fixedly installed on the surface of the mixing tank 1, and a first motor 406 is fixedly installed on the surface of the bracket 405, and the output end of the first motor 406 is fixedly connected to one end of one of the first spiral blades 404 (in the present embodiment, it is specifically fixedly connected to the first spiral blade 404 in the first feeding pipe 401), and pulleys 407 are fixedly installed on the surfaces of the two first spiral blades 404, and a belt is connected between the two pulleys 407. By respectively putting cement and admixture into the two feeding bins 403, and driving the two first spiral blades 404 to rotate by the first motor 406, the cement and admixture can be simultaneously fed into the mixing tank 1 through the first feeding pipe 401 and the second feeding pipe 402 for feeding.

[0028] Reference Figure 1-3In a preferred embodiment, the premixing chamber 408 is provided in the inner cavity of the stirring tank 1, the first feeding pipe 401 and the second feeding pipe 402 are both connected to the premixing chamber 408, a secondary mixing chamber 409 is provided in the inner cavity of the stirring tank 1, a channel 410 is provided between the secondary mixing chamber 409 and the premixing chamber 408, a rotating shaft 411 is rotatably installed in the inner cavity of the stirring tank 1, a plurality of stirring rods 413 are installed on the side wall of the rotating shaft 411, a second motor 412 is fixedly installed on the surface of the stirring tank 1, and the output end of the second motor 412 is connected to the rotating shaft One end of 411 is fixedly connected, and the rotating shaft 411 can be driven to rotate by the second motor 412, so that the cement and the admixture are preliminarily mixed through the stirring rod 413. The side wall of the rotating shaft 411 is symmetrically fixedly installed with a scraper 414, and the scraper 414 contacts the inner wall of the mixing tank 1 and is used to scrape off the residual raw materials in the premixing chamber 408. The surface of the rotating shaft 411 is fixedly installed with a second spiral blade 415, and the second spiral blade 415 is located in the channel 410, and is used to send the preliminarily mixed raw materials into the secondary mixing chamber 409.

[0029] In a preferred embodiment, when in use, cement and admixture are respectively put into two loading bins 403, and the two first spiral blades 404 are driven to rotate by the first motor 406, so that the cement and admixture are simultaneously fed into the premixing chamber 408 through the first feeding pipe 401 and the second feeding pipe 402, and then the rotating shaft 411 can be driven to rotate by the second motor 412, so that the cement and admixture are preliminarily mixed by the stirring rod 413, and the preliminarily mixed raw materials are fed into the secondary mixing chamber 409 by the second spiral blade 415 for subsequent stirring, so as to achieve mixing of the raw materials during the feeding process, avoid stacking of raw materials, and improve mixing efficiency.

[0030] Reference Figure 1-4 In a preferred embodiment, a debubbling mechanism 5 is installed in the inner cavity of the stirring tank 1 for eliminating bubbles generated during the stirring process. The debubbling mechanism 5 includes a frame 501, a stirring blade 502 and a bubble piercing rod 503. The frame 501 is fixedly installed on the surface of the rotating shaft 411, and the stirring blades 502 are symmetrically fixedly installed between the rotating shaft 411 and the frame 501. The stirring blades 502 are inclined, and the inclination directions of the stirring blades 502 on both sides are opposite. A plurality of bubble piercing rods 503 are installed in the inner cavity of the frame 501 for piercing bubbles floating on the surface of the slurry.

[0031] Reference Figure 1-4In a preferred embodiment, abutment blocks 504 are symmetrically fixedly installed on the side wall of the frame 501, a plurality of groups of connecting rods 505 are symmetrically slidably installed in the inner cavity of the stirring tank 1, contact blocks 506 are fixedly installed between adjacent connecting rods 505, the surfaces of the abutment blocks 504 and the contact blocks 506 are both wedge-shaped, a collision block 507 is fixedly installed on the inner wall of the contact block 506, a driving ring 508 is fixedly installed at one end of the connecting rod 505, a spring 509 is fixedly installed in the inner cavity of the stirring tank 1, one end of the spring 509 is fixedly connected to the stirring tank 1, and the spring 509 The other end is fixedly connected to the driving ring 508. Under the action of the spring 509, the driving connecting rod 505 drives the contact block 506 to move toward the inner cavity of the stirring tank 1. When the rotating shaft 411 drives the frame 501 to rotate, the contact block 506 can be hit by the abutment block 504 to compress the spring 509, and the impact block 507 can hit the inner wall of the stirring tank 1 to vibrate and remove bubbles. Part of the bubbles generated during the stirring process are directly broken, and the other part floats upward and is pierced by the bubble piercing rod 503 to achieve debubbling and ensure the strength of the slurry.

[0032] In a preferred embodiment, when in use, the second motor 412 drives the rotating shaft 411 to rotate, the slurry is further stirred by the stirring blade 502, and the contact block 506 is impacted by the abutment block 504, so that the spring 509 is compressed, and the impact block 507 impacts the inner wall of the stirring tank 1 to vibrate and remove bubbles, so that part of the bubbles generated during the stirring process bursts directly, and the other part floats upward and is pierced by the bubble piercing rod 503 to achieve debubbling and ensure the strength of the slurry.

[0033] Specifically, the working principle of the mixer feeding device for overburden delamination grouting is as follows: when in use, cement and admixture are respectively put into two feeding bins 403, and the two first spiral blades 404 are driven to rotate by the first motor 406, so that the cement and admixture can be simultaneously fed into the premixing chamber 408 through the first feeding pipe 401 and the second feeding pipe 402, and then the rotating shaft 411 can be driven to rotate by the second motor 412, so that the cement and admixture are preliminarily mixed by the stirring rod 413, and the preliminarily mixed raw materials are fed into the secondary mixing chamber 409 through the second spiral blade 415 for subsequent stirring, so as to achieve mixing of the raw materials during the feeding process, avoid stacking of raw materials, and improve mixing efficiency.

[0034] The second motor 412 drives the rotating shaft 411 to rotate, and the slurry is further stirred by the stirring blade 502, and the contact block 506 is impacted by the abutment block 504 to compress the spring 509, and the impact block 507 impacts the inner wall of the stirring tank 1 to vibrate and remove bubbles, so that part of the bubbles generated during the stirring process are directly burst, and the other part floats upward and is pierced by the bubble piercing rod 503 to achieve defoaming and ensure the strength of the slurry.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0036] It should be noted that the first motor 406 and the second motor 412 are devices or equipment existing in the prior art, or are devices or equipment that can be realized in the prior art. Their power supply, specific composition and principles are clear to those skilled in the art, so they are not described in detail.

Claims

1. A mixer feeding device for grouting of overburden separation layer, It is characterized in that The invention comprises a stirring tank (1), a water inlet pipe (2) and a feeding mechanism (4), wherein the side wall of the stirring tank (1) is provided with the water inlet pipe (2), the bottom of the stirring tank (1) is provided with a discharge pipe (3), and the feeding mechanism (4) is installed on the surface of the stirring tank (1) for feeding, and the feeding mechanism (4) comprises: A first feed pipe (401), the first feed pipe (401) being installed on the surface of the stirring tank (1), a second feed pipe (402) being installed on the surface of the stirring tank (1), the first feed pipe (401) and the second feed pipe (402) being arranged in parallel; A premixing chamber (408), wherein the premixing chamber (408) is provided in the inner cavity of the stirring tank (1), and the first feeding pipe (401) and the second feeding pipe (402) are both connected to the premixing chamber (408); A rotating shaft (411), the rotating shaft (411) being rotatably mounted in the inner cavity of the stirring tank (1), and a plurality of stirring rods (413) being mounted on the side wall of the rotating shaft (411); The inner cavity of the stirring tank (1) is provided with a debubbling mechanism (5) for eliminating bubbles generated during the stirring process. The debubbling mechanism (5) comprises a frame (501), a stirring blade (502) and a bubble piercing rod (503). The frame (501) is fixedly mounted on the surface of the rotating shaft (411). The stirring blades (502) are symmetrically fixedly mounted between the rotating shaft (411) and the frame (501). The stirring blades (502) are arranged to be inclined, and the inclination directions of the stirring blades (502) on both sides are opposite. The inner cavity of the frame (501) is provided with a plurality of bubble piercing rods (503); Abutment blocks (504) are symmetrically fixedly mounted on the side walls of the frame (501); a plurality of groups of connecting rods (505) are symmetrically slidably mounted in the inner cavity of the stirring tank (1); contact blocks (506) are fixedly mounted between adjacent connecting rods (505); the surfaces of the abutment blocks (504) and the contact blocks (506) are both wedge-shaped; and an impact block (507) is fixedly mounted on the inner wall of the contact block (506); A driving ring (508) is fixedly mounted on one end of the connecting rod (505), a spring (509) is fixedly mounted in the inner cavity of the stirring tank (1), one end of the spring (509) is fixedly connected to the stirring tank (1), and the other end of the spring (509) is fixedly connected to the driving ring (508).

2. A mixer feeding device for overburden separation grouting according to claim 1, It is characterized in that A loading bin (403) is installed at one end of the first feeding pipe (401) and the second feeding pipe (402), and a first spiral blade (404) is rotatably installed in the inner cavity of the first feeding pipe (401) and the second feeding pipe (402) for loading materials.

3. A mixer feeding device for overburden separation grouting according to claim 2, It is characterized in that A bracket (405) is fixedly mounted on the surface of the stirring tank (1); a first motor (406) is fixedly mounted on the surface of the bracket (405); an output end of the first motor (406) is fixedly connected to one end of one of the first spiral leaves (404); pulleys (407) are fixedly mounted on the surfaces of the two first spiral leaves (404); and a belt is connected between the two pulleys (407).

4. A mixer feeding device for overburden separation grouting according to claim 1, It is characterized in that The inner cavity of the stirring tank (1) is provided with a secondary mixing chamber (409), a channel (410) is provided between the secondary mixing chamber (409) and the premixing chamber (408), a second motor (412) is fixedly mounted on the surface of the stirring tank (1), and an output end of the second motor (412) is fixedly connected to one end of a rotating shaft (411).

5. A mixer feeding device for overburden separation grouting according to claim 4, It is characterized in that A scraper (414) is symmetrically fixedly mounted on the side wall of the rotating shaft (411), the scraper (414) is in contact with the inner wall of the stirring tank (1), and a second spiral blade (415) is fixedly mounted on the surface of the rotating shaft (411), the second spiral blade (415) is located in the channel (410).

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