Solid waste and Portland cement mixing device

Abstract

The utility model relates to the technical field of cement production, in particular to a solid waste and Portland cement mixing device which comprises a mixing barrel and a raw material feeding box, a servo motor is mounted at the upper end of the mixing barrel, a driving shaft of the servo motor is arranged in the mixing barrel in a penetrating manner, and empty grooves are formed in the left side and the right side in the raw material feeding box; the main rotating rod is rotationally arranged in the mixing barrel, and the upper end of the main rotating rod is connected with the output end of the servo motor. The stirring device overcomes the defects in the prior art, the servo motor drives the main rotating rod to rotate, the main rotating rod drives the spiral blade to rotate while rotating, the spiral blade can continuously send out raw materials at the bottom from the upper portion of the sleeve, and therefore in the stirring process, when the raw materials are settled, the raw materials can be uniformly stirred. The spiral blade rotates to drive the materials at the bottom to be continuously sent out from the upper end and fully mixed with the materials at the upper layer, so that the uniform stirring effect is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of cement production, in particular to a device for mixing solid waste and silicate cement. Background Art

[0002] In the solid waste cementation process, solid waste is usually crushed, ground and sieved to obtain appropriate particle size and uniformity. Then, these solid wastes are mixed with silicate cement in a certain proportion to form a uniform slurry material. Finally, this slurry material is pressed, formed and cured so that it undergoes a hydration reaction under appropriate conditions to form a solid and stable cement product. Through mixing with silicate cement, harmful substances in solid waste can be solidified and stabilized, reducing their toxicity and permeability, thereby reducing the risk of pollution to soil and groundwater. Combined with an existing coal-fired furnace slag mixing device for silicate cement production (CN213433897U), the document states that the rotating rod rotates under the action of a power device, and the rotating rod drives the stirring rod to rotate, and the stirring rod can mix the raw materials and coal-fired furnace slag together. It can be seen that at least the following defects are exposed during use:

[0003] 1. In the references, other raw materials are added into the feed pipe through the feed hopper and then enter the mixing box body. However, the performance and quality of cement products are affected by the composition of raw materials. This method of adding is difficult to accurately control the amount of raw materials added, which may eventually lead to unstable product quality and possible quality problems such as strength and durability.

[0004] 2. Usually when solid waste and cement are mixed, a motor is used to drive the stirring rod to rotate and mix the various raw materials. However, during the mixing process, sedimentation may occur due to different density and particle sizes of the raw materials, resulting in uneven mixing. Utility Model Content

[0005] The utility model aims to provide a device for mixing solid waste and silicate cement, so as to solve the problems of the existing mixing device in the use process proposed in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A solid waste and silicate cement mixing device comprises a mixing cylinder and a raw material feeding box, a servo motor is installed at the upper end of the mixing cylinder, the driving shaft of the servo motor is arranged through the inside of the mixing cylinder, and empty slots are opened on the left and right sides of the inside of the raw material feeding box; a main rotating rod is rotatably arranged inside the mixing cylinder, and the upper end of the main rotating rod is connected to the output end of the servo motor; a spiral blade is arranged on the outer side of the main rotating rod, and a sleeve is provided on the outer side of the main rotating rod, the sleeve is located on the outer side of the spiral blade, and the upper and lower ends of the sleeve are connected to the main rotating rod through a connecting frame; a baffle is provided with two pieces and is hinged to the middle parts of the two ends of the inner wall of the raw material feeding box; a weight sensor is installed at the inner bottom end of the empty slot; a stabilizing block is arranged at the upper end of the weight sensor, and an electric push rod is hinged between one side of the stabilizing block and the lower side of the inner end of the baffle.

[0008] Preferably, the main rotating rod further includes: a main gear, which is fixedly arranged on the outer side of the main rotating rod, and the main gear is located at the upper end of the main rotating rod.

[0009] Preferably, the mixing cylinder further comprises: auxiliary rotating rods, which are rotatably arranged on both sides of the interior of the mixing cylinder; auxiliary gears, which are fixedly arranged on the upper side of the outer end of the auxiliary rotating rods, and the auxiliary gears are meshingly connected with the main gears.

[0010] Preferably, the raw material feeding box is located on the left and right sides of the upper end of the mixing cylinder, and the interior of the raw material feeding box is funnel-shaped.

[0011] Preferably, a support plate is provided on the outer side of the mixing cylinder, and support columns are provided at the four corners of the lower end of the support plate.

[0012] Preferably, a feeding pipe is provided at the upper end of the raw material feeding box; a guide plate is provided at the lower end of the interior of the raw material feeding box, and the other end of the guide plate passes through the interior of the mixing cylinder; support rods are fixedly provided at the four corners of the lower end of the raw material feeding box, and the lower end of the support rod is fixedly connected to the upper end of the support plate.

[0013] Preferably, a controller is provided on one side of the upper end of the support plate, an A / D converter and a central processing unit are provided inside the controller, and the signal output end of the A / D converter is connected to the signal receiving end of the central processing unit, and the signal output end of the weight sensor is connected to the A / D converter in the controller, and the electric push rod is electrically connected to the central processing unit of the controller.

[0014] Preferably, a feed pipe is provided at the lower end of the mixing cylinder, and a valve is provided on the outer side of the feed pipe.

[0015] The embodiment of the utility model provides a device for mixing solid waste and silicate cement, which has the following beneficial effects:

[0016] 1. When solid waste or raw materials are poured into the raw material feeding box, the materials will fall on the baffle. The baffle and the electric push rod are hingedly connected. The stabilizing block at one end of the electric push rod is located on the upper end of the weight sensor. The weight sensor can detect the amount of material poured on the baffle. When the weight on the upper end of the baffle reaches the threshold, the weight sensor sends a signal to the controller, and the controller controls the electric push rod to pull the inner end of the baffle downward to open the baffle. At this time, the material falls into the guide plate and flows into the mixing cylinder. The weight sensor can detect the weight change of the material on the baffle, and can control the amount of solid waste or cement added to avoid excessive or insufficient addition of materials, thereby improving the stability of the production process and avoiding affecting the product quality of cement.

[0017] 2. The main rotating rod is driven to rotate by the servo motor. The main rotating rod also drives the spiral blades to rotate. The spiral blades can continuously send the raw materials at the bottom out from the top of the sleeve. During the mixing process, when the raw materials settle, the rotation of the spiral blades drives the materials at the bottom to be continuously sent out from the top and fully mixed with the materials on the upper layer, thereby achieving a uniform mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the main plan view of the section of the mixing cylinder and the raw material feeding box of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the baffle, electric push rod and weight sensor of the utility model;

[0022] Figure 4 The utility model is a schematic diagram of the structure of a sleeve, a main rotating rod, a secondary rotating rod, a main gear and a secondary gear.

[0023] In the figure: 1. support plate; 2. mixing cylinder; 3. raw material feeding box; 4. servo motor; 5. controller; 6. support column; 7. support rod; 8. sub-gear; 9. main gear; 10. sub-rotating rod; 11. spiral blade; 12. sleeve; 13. feeding pipe; 14. guide plate; 15. feeding pipe; 16. baffle; 17. electric push rod; 18. empty slot; 19. stabilizing block; 20. weight sensor; 21. main rotating rod; 22. connecting frame. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0025] Example: Figure 1 As shown, a solid waste and silicate cement mixing device includes a mixing cylinder 2 and a raw material feeding box 3. The raw material feeding boxes 3 are respectively located on the left and right sides of the upper end of the mixing cylinder 2. The raw material feeding boxes 3 on both sides are used to store solid waste and silicate cement materials respectively. When in use, the raw material feeding boxes 3 on both sides are respectively injected into the mixing cylinder 2 for mixing.

[0026] like Figure 2 As shown, the driving shaft of the servo motor 4 is through-set inside the mixing cylinder 2, and the output end of the servo motor 4 is connected to the main rotating rod 21. When mixing, the main rotating rod 21 is driven to rotate by running the servo motor. When the main rotating rod 21 rotates, the main gear 9 at the upper end of the outer side thereof rotates, and the main gear 9 rotates to drive the sub-gear 8 meshing therewith to rotate. Since the sub-gear 8 is fixedly arranged on the outer side of the upper end of the sub-rotating rod 10, the sub-rotating rod 10 is driven to start rotating, and then the stirring rod on the outer side of the sub-rotating rod 10 starts to rotate, so as to stir the raw materials.

[0027] like Figure 3 As shown, the inner wall of the raw material feeding box 3 is rotatably arranged on the baffle 16, and an electric push rod 17 is hinged between the lower inner end of the baffle 16 and the stabilizing block 19. When no feeding is needed, the baffle 16 is in a closed state. When it is necessary to add materials to the mixing cylinder 2 during use, solid waste or raw materials enter the raw material feeding box 3 from the feeding pipe at the upper end. At this time, the baffle is in a closed state. As the materials are poured in, the materials will fall on the baffle 16, and the baffle 16 will bear the weight of the materials. Since the baffle 16 and the electric push rod 17 are connected by a hinge, when there is weight on the baffle 16, the stabilizing block 19 on one side of the electric push rod 17 is located at the upper end of the weight sensor, and the weight sensor 20 can detect the amount of material poured in. At this time, a threshold value can be preset in the weight sensor. When the weight on the upper end of the baffle 16 reaches the threshold value, the weight sensor 20 transmits a signal to the A / D converter inside the controller 5, and the controller controls the electric push rod 17 to operate, and pulls the inner end of the baffle 16 downward, so that the baffle 16 is in an open state. At this time, the material falls into the guide plate 14 and flows into the mixing cylinder 2. The weight sensor can detect the weight change of the material on the baffle 16, and can control the amount of solid waste or cement added to avoid excessive or insufficient addition of materials, thereby improving the stability of the production process and avoiding affecting the product quality of the cement.

[0028] like Figure 4As shown, the output end of the servo motor 4 is connected to the main rotating rod 21, and the outer surface of the main rotating rod 21 is provided with a spiral blade 11. The outer side of the main rotating rod 21 is installed with a sleeve 12, and the sleeve 12 is located on the outer side of the spiral blade 11, and the sleeve 12 is connected to the outer surface of the main rotating rod 21 through a connecting frame 22. When in use, the servo motor 4 drives the main rotating rod 21 to rotate, and the main rotating rod 21 rotates while driving the spiral blade 11 to rotate. The spiral blade 11 can continuously deliver the raw materials at the bottom from the top of the sleeve 12, and then during the stirring process, when the raw materials settle, the rotation of the spiral blade 11 drives the materials at the bottom to be continuously delivered from the upper end, and is fully mixed with the materials on the upper layer, thereby achieving a uniform stirring effect.

[0029] Working principle: The raw material feeding boxes 3 on both sides are used to store solid waste and silicate cement materials respectively. When materials need to be added to the mixing cylinder 2, the solid waste or raw materials enter the raw material feeding box 3 from the feeding pipe at the upper end. At this time, the baffle 16 is in a closed state. As the materials are poured in, the materials will fall on the baffle 16, and the baffle 16 will bear the weight of the materials. Since the baffle 16 and the electric push rod 17 are hingedly connected, when there is weight on the baffle 16, the stabilizing block 19 on one side of the electric push rod 17 is located at the upper end of the weight sensor, and the weight sensor 20 can detect the amount of material poured in. At this time, a threshold value can be preset through the weight sensor. When the weight at the upper end of the baffle 16 reaches the threshold value, the weight sensor 20 transmits a signal to the A / D converter inside the controller 5, and the controller controls the electric push rod 17 to operate , pull the inner end of the baffle 16 downward to make the baffle 16 open. At this time, the material falls into the guide plate 14 and flows into the mixing cylinder 2. The weight sensor can detect the weight change of the material on the baffle 16, and can control the amount of solid waste or cement added to avoid excessive or insufficient addition of materials, thereby improving the stability of the production process and thus avoiding affecting the product quality of the cement. During mixing, the servo motor 4 drives the main rotating rod 21 to rotate. The main rotating rod 21 rotates and drives the spiral blade 11 to rotate at the same time. The spiral blade 11 can continuously deliver the raw materials at the bottom from the top of the sleeve 12. During the mixing process, when the raw materials settle, the rotation of the spiral blade 11 drives the material at the bottom to be continuously delivered from the upper end and fully mixed with the material on the upper layer, thereby achieving a uniform mixing effect.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for mixing solid waste and silicate cement, It is characterized in that include: A mixing cylinder (2) and a raw material feeding box (3), wherein a servo motor (4) is mounted on the upper end of the mixing cylinder (2), a drive shaft of the servo motor (4) is arranged through the interior of the mixing cylinder (2), and empty grooves (18) are provided on both left and right sides of the interior of the raw material feeding box (3); A main rotating rod (21) is rotatably disposed inside the mixing cylinder (2), and the upper end of the main rotating rod (21) is connected to the output end of the servo motor (4); A spiral blade (11) is arranged on the outside of the main rotating rod (21); a sleeve (12) is arranged on the outside of the main rotating rod (21); the sleeve (12) is located on the outside of the spiral blade (11), and the upper and lower ends of the sleeve (12) are connected to the main rotating rod (21) via a connecting frame (22); baffles (16), which are provided in two pieces and are hingedly connected to the middle parts of both ends of the inner wall of the raw material feeding box (3); A weight sensor (20) is installed at the inner bottom end of the empty slot (18); A stabilizing block (19) is disposed at the upper end of the weight sensor (20), and an electric push rod (17) is hingedly connected between one side of the stabilizing block (19) and the lower side of the inner end of the baffle (16).

2. The solid waste and silicate cement mixing device according to claim 1, It is characterized in that The main rotating rod (21) further comprises: The main gear (9) is fixedly arranged on the outside of the main rotating rod (21), and the main gear (9) is located at the upper end of the main rotating rod (21).

3. The solid waste and silicate cement mixing device according to claim 1, It is characterized in that The mixing cylinder (2) further comprises: Auxiliary rotating rods (10) are rotatably arranged on both sides of the interior of the mixing cylinder (2); Auxiliary gears (8) are fixedly arranged on the upper side of the outer end of the auxiliary rotating rod (10), and the auxiliary gears (8) are meshingly connected with the main gears (9).

4. The solid waste and silicate cement mixing device according to claim 1, It is characterized in that The raw material feeding box (3) is located on the left and right sides of the upper end of the mixing cylinder (2), and the interior of the raw material feeding box (3) is arranged in a funnel shape.

5. The solid waste and silicate cement mixing device according to claim 1, It is characterized in that A support plate (1) is provided on the outside of the mixing cylinder (2), and support columns (6) are provided at the four corners of the lower end of the support plate (1).

6. The solid waste and silicate cement mixing device according to claim 1, It is characterized in that The upper end of the raw material feeding box (3) is provided with a feeding pipe (15); A material guide plate (14) is arranged at the lower end of the raw material feeding box (3), and the other end of the material guide plate (14) penetrates into the interior of the mixing cylinder (2); Support rods (7) are fixedly arranged at the four corners of the lower end of the raw material feeding box (3), and the lower ends of the support rods (7) are fixedly connected to the upper ends of the support plates (1).

7. The solid waste and silicate cement mixing device according to claim 5, It is characterized in that A controller (5) is provided on one side of the upper end of the support plate (1), wherein an A / D converter and a central processing unit are provided inside the controller (5), and a signal output end of the A / D converter is connected to a signal receiving end of the central processing unit, and a signal output end of the weight sensor (20) is connected to the A / D converter in the controller (5), and the electric push rod (17) is electrically connected to the central processing unit of the controller (5).

8. The solid waste and silicate cement mixing device according to claim 1, It is characterized in that A feed pipe (13) is provided at the lower end of the mixing cylinder (2), and a valve is provided on the outer side of the feed pipe (13).

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