Raw material intelligent mixing equipment and method for autoclaved aerated concrete preparation

Abstract

The application relates to the technical field of stirring equipment, in particular to a raw material intelligent stirring equipment and method for autoclaved aerated concrete preparation, which comprises a stirring tank and a conveying mechanism, the conveying mechanism comprises a feeding pipe, a conveying pipe, electric heating wires, a heat insulation layer, a protective shell, a spiral conveying auger, a feeding device and a driving device, raw materials in the conveying pipe can be conveyed after the spiral conveying auger is driven to rotate by the driving device, finally, the raw materials can enter the stirring tank through the feeding pipe to be stirred and mixed, and the raw materials can be dried when passing through the conveying pipe due to the heating of the inner wall of the conveying pipe by the electric heating wires, so that the problems that the feeding device of the existing stirring equipment is difficult to process the damp and caked raw materials, difficult to dry the damp and caked raw materials and difficult to mix the caked raw materials, and the quality of the subsequent production of autoclaved aerated concrete is affected are solved.

Description

Technical Field

[0001] This invention relates to the field of mixing equipment technology, and in particular to an intelligent mixing equipment and method for raw materials used in the preparation of autoclaved aerated concrete. Background Technology

[0002] Autoclaved aerated concrete (AAC) is an energy-saving building material. During its production, preparation, and use, a mixer is required to mix and blend its raw materials.

[0003] There are certain defects in the use of existing autoclaved aerated concrete raw materials. When cement, lime, silica sand and other materials are used as the main raw materials, some of the materials will clump due to moisture. The feeding device of the existing mixing equipment is difficult to deal with the moisture-induced clumps of raw materials, and it is difficult to dry them and mix them in a way that prevents clumping. This will affect the quality of the subsequent production of autoclaved aerated concrete. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent mixing device and method for raw materials used in the preparation of autoclaved aerated concrete (AAC), which solves the problem that the feeding device of existing mixing equipment is difficult to handle damp and clumped raw materials, difficult to dry them, and difficult to mix raw materials to prevent clumping, which affects the quality of subsequent AAC production.

[0005] To achieve the above objectives, the present invention provides an intelligent mixing device for raw materials used in the preparation of autoclaved aerated concrete, including a mixing tank and a conveying mechanism; The conveying mechanism includes a feed pipe, a conveying pipe, an electric heating wire, a heat insulation layer, a protective shell, a spiral conveying auger, a feeding device, and a driving device. The feed pipe is installed on the top of the mixing tank, and its top end is welded to the bottom of the discharge port of the conveying pipe. A spiral groove is provided on the outer surface of the conveying pipe. The spiral groove is not connected to the inner cavity, and the electric heating wire is fixed in the spiral groove. The heat insulation layer is disposed between the electric heating wire and the protective shell. The protective shell is formed by assembling two half-shells of the same size and is detachably connected to the conveying pipe. The spiral conveying auger is disposed inside the conveying pipe and is driven to rotate by the driving device. The feeding device is disposed above the feed port on the bottom side of the conveying pipe.

[0006] The mixing tank is equipped with a stirring motor at the top, and the output shaft of the stirring motor is connected to the stirring frame inside the mixing tank.

[0007] The feeding device includes a feeding pipe and a hopper. The feeding pipe is welded to the top of the inlet on the bottom side of the conveying pipe; the hopper is welded to the top of the feeding pipe.

[0008] The drive device includes a bracket and a reducer. The bracket is mounted on the end cap at the high end of the conveying pipe. The reducer is mounted on the bracket, and its output shaft is connected to the screw conveyor auger via a coupling.

[0009] The bottom end cap of the conveying pipe is also equipped with a sealing sleeve, which is detachably connected to the bottom end cap of the conveying pipe.

[0010] The intelligent mixing equipment for raw materials used in the preparation of autoclaved aerated concrete also includes a stabilizing mechanism. The stabilizing mechanism includes an arc-shaped clamping plate and a connecting plate. The connecting plate is integrally arranged on both sides of the arc-shaped clamping plate and is slidably connected to the protective shell. The two connecting plates are connected by a connector.

[0011] The arc-shaped card plate is also provided with an arc-shaped card strip, which is slidably engaged with the protective shell.

[0012] One method for intelligent mixing of raw materials for autoclaved aerated concrete (AAC) preparation, implemented using the aforementioned intelligent mixing equipment for AAC preparation raw materials, includes the following steps: Connect the power supply to the electric heating wire on the outside of the delivery pipe; The inner wall of the delivery pipe is heated by an electric heating wire; Raw materials are fed into the hopper and then into the conveying pipe through the feeding pipe. After entering, the raw materials are conveyed by a rotating screw conveyor. During the conveying process, the raw materials are dried at the same time. Finally, they are introduced into the mixing tank through the feeding pipe. The stirring motor at the top of the mixing tank drives the stirring frame to rotate, which can stir the raw materials.

[0013] This invention discloses an intelligent mixing device for raw materials used in the preparation of autoclaved aerated concrete. A drive unit rotates a screw conveyor to transport raw materials inside a conveying pipe. The raw materials then enter a mixing tank through a feed pipe for mixing. As the raw materials pass through the conveying pipe, the inner wall is heated by an electric heating wire, allowing the materials to be dried during transport. This solves the problem of existing mixing devices' feeding devices being unable to handle damp, caking raw materials, making it difficult to dry and mix materials to prevent clumping, thus affecting the quality of subsequent autoclaved aerated concrete production. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of the intelligent mixing equipment for raw materials used in the preparation of autoclaved aerated concrete according to the first embodiment of the present invention.

[0016] Figure 2 This is a cross-sectional view of the delivery pipe according to the first embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the arc-shaped card plate according to the second embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the arc-shaped card strip according to the second embodiment of the present invention.

[0019] Figure 5 This is a schematic diagram of the structure of the fixing block according to the third embodiment of the present invention.

[0020] Figure 6 This is a flowchart of an intelligent mixing method for raw materials used in the preparation of autoclaved aerated concrete according to the present invention.

[0021] In the diagram: 101-mixing tank, 102-feed pipe, 103-conveying pipe, 104-electric heating wire, 105-insulation layer, 106-protective shell, 107-screw conveyor, 108-mixing motor, 109-feeding pipe, 110-hopper, 111-support, 112-reducer, 113-sealing sleeve, 114-discharge mechanism, 115-support component, 201-arc-shaped clamping plate, 202-connecting plate, 203-arc-shaped clamping strip, 301-fixing block, 302-insertion block, 303-locking component. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] Example 1: like Figure 1 and Figure 2 As shown, where Figure 1 This is a schematic diagram of the overall structure of an intelligent mixing equipment for raw materials used in the preparation of autoclaved aerated concrete. Figure 2This is a cross-sectional view of the conveying pipe. The present invention provides an intelligent mixing device for raw materials used in the preparation of autoclaved aerated concrete (AAC): it includes a mixing tank 101 and a conveying mechanism. The conveying mechanism includes a feed pipe 102, a conveying pipe 103, an electric heating wire 104, a heat insulation layer 105, a protective shell 106, a screw conveyor 107, a feeding device, and a driving device. The feeding device includes a feeding pipe 109 and a hopper 110. The driving device includes a support 111 and a reducer 112. This solution solves the problem that existing mixing equipment's feeding devices struggle to handle damp, caking raw materials, making it difficult to dry and mix materials to prevent caking, thus affecting the quality of subsequent AAC production. It is understood that the aforementioned solution can dry the conveyed raw materials, which helps ensure the quality of subsequent AAC production.

[0024] In this embodiment, a discharge mechanism 114 is provided at the bottom of the mixing tank 101. The discharge mechanism 114 can be a valve or a corresponding material guiding mechanism in the prior art. In addition, the standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control by a controller. The control circuit of the controller (such as a PLC) can be implemented by simple programming by those skilled in the art, which is common knowledge in the art. In addition, this application is mainly used to protect mechanical devices, so this application will not explain the control method and circuit connection in detail.

[0025] The feed pipe 102 is installed on the top of the mixing tank 101, and its top end is welded to the bottom of the discharge port of the conveying pipe 103. The outer surface of the conveying pipe 103 is provided with a spiral groove, which is not connected to the inner cavity. The electric heating wire 104 is fixed in the spiral groove. The heat insulation layer 105 is disposed between the electric heating wire 104 and the protective shell 106. The protective shell 106 is formed by assembling two half-shells of the same size and is detachably connected to the conveying pipe 103. The spiral conveying auger 107 is disposed in the conveying pipe 103 and is driven to rotate by the driving device. The feeding device is disposed on the upper side of the feed port on the bottom side of the conveying pipe 103. The bottom flange of the feed pipe 102 is fixed with bolts. The electric heating wire 104 is fixed in the spiral groove on the outside of the conveying pipe 103. The heat insulation layer 105 is limited by the two protective shells 106 after installation, which prevents the heat generated by the electric heating wire 104 from being directly dissipated to the outside, and is more conducive to the heating of the inner wall of the conveying pipe 103. The lower end of the protective shell 106 is bolted to the disc of the conveying pipe 103. The spiral conveying auger 107 is used for raw material conveying, and the conveying pipe 103 is inclined to achieve low-point feeding. Multiple conveying pipes 103 and other feeding structures of this application can be set according to actual needs and are arranged in a ring at intervals. One of the protective shells 106 has a notch for the working cable of the electric heating wire 104. The spiral blades of the spiral conveyor 107 are coated with a wear-resistant coating, which is a metal-ceramic wear-resistant coating. The chemical composition of the cladding alloy material is as follows: C 0.8-1.5%, B 2-4%, Si 1-3%, Cr 5-8%, Ti 3-5%, Ni 3-5%, Co 3B 4-8%, WC 50-62%, Fe balance, and it is produced by a coating cladding process. A support member 115 is welded to the bottom of the lower side of the conveying pipe 103.

[0026] Secondly, the output shaft of the stirring motor 108 is connected to the stirring frame inside the stirring tank 101. The stirring motor 108 is fixed by bolts, and its output shaft is connected to the stirring frame (not shown in the figure) through a coupling. The stirring frame consists of a vertical rotating shaft and multiple stirring elements arranged in a horizontal ring at intervals. Multiple sets of stirring elements are also arranged vertically at intervals.

[0027] Then, the feeding pipe 109 is welded to the top of the inlet on the bottom side of the conveying pipe 103; the hopper 110 is welded to the top of the feeding pipe 109. The hopper 110 and the feeding pipe 109 facilitate the low-point input of raw materials.

[0028] Furthermore, the bracket 111 is mounted on the end cap at the high end of the conveying pipe 103; the reducer 112 is mounted on the bracket 111, and its output shaft is connected to the screw conveyor 107 via a coupling. The bracket 111 is fixed with bolts, and the end caps on both sides of the conveying pipe 103 are used to cooperate with bearings to achieve rotational support for the screw conveyor 107. The bearings are deep groove ball bearings with metal dust covers on both sides. The reducer 112 is fixed with bolts, and its output shaft is connected to the connecting shaft of the screw conveyor 107 via a rigid coupling.

[0029] Finally, the sealing sleeve 113 is detached from the end cap on the bottom side of the conveying pipe 103. The sealing sleeve 113 is T-shaped with a circular cavity inside and is fixed by bolts. After installation, it is located on the outside of the low-point side shaft end of the screw conveyor 107 to protect the shaft end.

[0030] When using this invention to dry the conveyed raw materials to ensure the quality of subsequent autoclaved aerated concrete production, the screw conveyor 107, driven by the reducer 112, can rotate to convey the raw materials inside the conveying pipe 103. Finally, the raw materials can enter the mixing tank 101 through the feed pipe 102 for mixing. As the raw materials pass through the conveying pipe 103, the electric heating wire 104 heats the inner wall of the conveying pipe 103, allowing the raw materials to be dried during conveying. This solves the problem that the feeding device of existing mixing equipment is difficult to handle damp and clumped raw materials, making it difficult to dry and mix raw materials to prevent clumping, which affects the quality of subsequent autoclaved aerated concrete production. Example

[0032] like Figure 3 and Figure 4 As shown, where Figure 3 This is a schematic diagram of the arc-shaped card plate. Figure 4 This is a schematic diagram of the arc-shaped clamping strip. Based on the first embodiment, the present invention provides an intelligent mixing device for raw materials used in the preparation of autoclaved aerated concrete. The intelligent mixing device for raw materials used in the preparation of autoclaved aerated concrete also includes a stabilizing mechanism, which includes an arc-shaped clamping plate 201 and a connecting plate 202.

[0033] The arc-shaped clamping plate 201 has connecting plates 202 integrally formed on both sides and is slidably connected to the protective shell 106; the two connecting plates 202 are connected by a connector. The arc-shaped clamping plate 201 has perforated connecting plates 202 integrally formed on both sides, and the two arc-shaped clamping plates 201 are connected by the two connecting plates 202 to form a whole. The connector uses a T-shaped screw nut.

[0034] Secondly, the arc-shaped card plate 201 is also provided with an arc-shaped card strip 203, which is slidably engaged with the protective shell 106. The protective shell 106 is provided with a non-penetrating card groove that cooperates with the arc-shaped card strip 203.

[0035] In this embodiment, the arc-shaped retaining plate 201 can improve the stability of the two individual protective shells 106. Example

[0037] like Figure 5 As shown, where Figure 5 This is a structural schematic diagram of the fixed block. Based on the first embodiment, the present invention provides an intelligent mixing device for raw materials used in the preparation of autoclaved aerated concrete. The intelligent mixing device for raw materials used in the preparation of autoclaved aerated concrete further includes a plug-in mechanism, which includes a fixed block 301, a plug block 302, and a locking member 303.

[0038] The fixing block 301 is mounted on one of the protective shells 106, located near the end of the feed pipe 102. The insert block 302 is slidably connected to the fixing block 301 and mounted on the other protective shell 106. The locking member 303 is threadedly connected to the insert block 302 and abuts against the fixing block 301. The fixing block 301 is fixed by bolts. The fixing block 301 has a stepped cavity and a through hole communicating with the stepped cavity. The insert block 302 is fixed by bolts, with its stepped end engaging with the stepped cavity. The extended end is limited by the locking member 303. The locking member 303 is an external hexagonal nut or a locking threaded ring.

[0039] In this embodiment, the structure of the fixing block 301, the insert block 302 and the locking member 303 enables the opposite end of the protective shell 106, which is fixed by bolts, to be connected after the protective shell 106 is assembled, thereby further improving the stability of the protective shell 106 after installation.

[0040] like Figure 6 As shown, where Figure 6 This is a flowchart of an intelligent mixing method for raw materials used in the preparation of autoclaved aerated concrete (AAC) according to the present invention. The intelligent mixing method for raw materials used in the preparation of AAC is implemented using the intelligent mixing equipment for raw materials used in the preparation of AAC and includes the following steps: S1: Connect the power supply to the electric heating wire 104 on the outside of the delivery pipe 103; S2: The inner wall of the delivery pipe 103 is heated by the electric heating wire 104; S3: The raw material is fed into the hopper 110. The raw material enters the conveying pipe 103 through the feeding pipe 109. After entering, the raw material is conveyed by the rotating screw conveyor 107. During the conveying process, the raw material is dried at the same time. Finally, it is introduced into the mixing tank 101 through the feeding pipe 102. S4: The stirring motor 108 at the top of the mixing tank 101 drives the stirring frame to rotate, which can stir the raw materials.

[0041] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An intelligent mixing device for raw materials used in the preparation of autoclaved aerated concrete, comprising a mixing tank, characterized in that, It also includes a conveying mechanism; The conveying mechanism includes a feed pipe, a conveying pipe, an electric heating wire, a heat insulation layer, a protective shell, a spiral conveying auger, a feeding device, and a driving device. The feed pipe is installed on the top of the mixing tank, and its top end is welded to the bottom of the discharge port of the conveying pipe. A spiral groove is provided on the outer surface of the conveying pipe. The spiral groove is not connected to the inner cavity, and the electric heating wire is fixed in the spiral groove. The heat insulation layer is disposed between the electric heating wire and the protective shell. The protective shell is formed by assembling two half-shells of the same size and is detachably connected to the conveying pipe. The spiral conveying auger is disposed inside the conveying pipe and is driven to rotate by the driving device. The feeding device is disposed above the feed port on the bottom side of the conveying pipe.

2. The intelligent mixing equipment for raw materials used in the preparation of autoclaved aerated concrete as described in claim 1, characterized in that, A stirring motor is installed on the top of the mixing tank, and the output shaft of the stirring motor is connected to the stirring frame inside the mixing tank.

3. The intelligent mixing equipment for raw materials used in the preparation of autoclaved aerated concrete as described in claim 1, characterized in that, The feeding device includes a feeding pipe and a hopper. The feeding pipe is welded to the top of the inlet on the bottom side of the conveying pipe; the hopper is welded to the top of the feeding pipe.

4. The intelligent mixing equipment for raw materials used in the preparation of autoclaved aerated concrete as described in claim 1, characterized in that, The drive unit includes a bracket and a reducer. The bracket is mounted on the end cap at the high end of the conveying pipe. The reducer is mounted on the bracket, and its output shaft is connected to the screw conveyor auger via a coupling.

5. The intelligent mixing equipment for raw materials used in the preparation of autoclaved aerated concrete as described in claim 1, characterized in that, A sealing sleeve is also installed on the bottom end cap of the conveying pipe, and the sealing sleeve is detachably connected to the bottom end cap of the conveying pipe.

6. The intelligent mixing equipment for raw materials used in the preparation of autoclaved aerated concrete as described in claim 1, characterized in that, The intelligent mixing equipment for raw materials used in the preparation of autoclaved aerated concrete also includes a stabilizing mechanism, which includes an arc-shaped clamping plate and a connecting plate. The connecting plate is integrally arranged on both sides of the arc-shaped clamping plate and is slidably connected to the protective shell. The two connecting plates are connected by a connector.

7. The intelligent mixing equipment for raw materials used in the preparation of autoclaved aerated concrete as described in claim 6, characterized in that, The arc-shaped card plate is also provided with an arc-shaped card strip, which is slidably engaged with the protective shell.

8. A method for intelligent mixing of raw materials for the preparation of autoclaved aerated concrete, characterized in that, The method employs the intelligent mixing equipment for raw materials used in the preparation of autoclaved aerated concrete as described in any one of claims 1 to 7, and includes the following steps: Connect the power supply to the electric heating wire on the outside of the delivery pipe; The inner wall of the delivery pipe is heated by an electric heating wire; Raw materials are fed into the hopper and then into the conveying pipe through the feeding pipe. After entering, the raw materials are conveyed by a rotating screw conveyor. During the conveying process, the raw materials are dried at the same time. Finally, they are introduced into the mixing tank through the feeding pipe. The stirring motor at the top of the mixing tank drives the stirring frame to rotate, which can stir the raw materials.

Images