Automatic slurry preparation system

Abstract

The utility model relates to the technical field of plant fiber pulping, in particular to an automatic pulp mixing system which comprises a feeding device, a pulping device, an auxiliary adding device and a control box, and the feeding device is used for feeding plant fiber blocks; the pulping device comprises a pulper, a supply water tank and a pulp storage tank, the pulper can receive the plant fiber blocks conveyed by the feeding device, and the supply water tank and the pulp storage tank are communicated with the pulper through pipelines; the output end of the pulp storage tank is sequentially connected with a desanding filtering device and a pulp mixing tank through pipelines, the pulp mixing tank is in pipe connection with the pulp storage tank, the supply water tank is in pipe connection with the pulp mixing tank, and a circulating pump is arranged on the pipeline between the pulp storage tank and the pulper; the assistant adding device is in pipe connection with the size mixing tank; and the control box is used for controlling actions of the pulper, the water supply tank and the circulating pump. The automatic slurry preparation system can effectively ensure that the concentration of the slurry meets the requirement, and also ensure that the slurry and the additive can be uniformly mixed.

Description

Technical Field

[0001] The utility model relates to the technical field of plant fiber processing, in particular to an automatic pulping system. Background Art

[0002] As people's environmental awareness increases, in order to reduce the use of plastic products, alternatives are gradually being discovered and used. Among them, plant fiber is an important alternative to plastic products. At present, tableware or paper products made of plant fiber have basically achieved industrial production, which greatly reduces the impact of plastic products on the environment.

[0003] In the process of making paper products, plant fibers need to go through the processes of pulping, suction filtration molding and hot pressing molding, among which the pulping stage is the first and most important step of paper products; the fiber slurry modulation ratio directly affects the molding quality of the later paper products. Among them, the pulping stage requires the proportioning of various raw materials, so that the mixture of various raw materials can enter the next process. In the existing slurry mixing operation, various additives are generally put into the stirring equipment according to demand, so that the plant fibers and various additives are mixed, which is convenient for the subsequent processing of the slurry. For example, the patent CN115193318A discloses a slurry tank slurry mixing system for a plant fiber molding machine. In the slurry mixing system, a feed cover, a conveying pipe, a mixing cover and other structures are provided, and multiple mixing methods are used to add feed, thereby avoiding premature reaction of additives and ensuring the quality of the product. However, the slurry mixing system only solves the problem of premature reaction of additives, but does not solve the problem of how to accurately add additives. The mixing of additives and slurry requires that the concentration of the slurry is uniform and meets the preset concentration requirements, otherwise it will be difficult to mix the slurry and additives to achieve a uniform ratio; this will increase the randomness of the products formed by this batch of slurry, making it difficult to ensure the uniform quality of products from different batches. Utility Model Content

[0004] In order to overcome one of the deficiencies of the prior art, the purpose of the utility model is to provide an automatic slurry mixing system, which can effectively ensure that the concentration of the slurry meets the requirements and also ensure that the slurry and additives can be mixed evenly.

[0005] In order to solve the above problems, the technical solutions adopted by the utility model are as follows:

[0006] An automatic pulping system comprises a feeding device, a pulping device, an auxiliary agent adding device and a control box, wherein the feeding device is used for feeding plant fiber blocks; the pulping device comprises a pulper, a supply water tank and a pulp storage tank, wherein the pulper can receive the plant fiber blocks conveyed by the feeding device, and the supply water tank and the pulp storage tank are both connected to the pulper through a pipeline; the output end of the pulp storage tank is connected to a sand removal and filtering device and a pulp mixing tank through a pipeline in sequence, the pulp mixing tank is pipe-connected to the pulp storage tank, the supply water tank is pipe-connected to the pulp mixing tank, and a circulating pump is arranged on the pipeline between the pulp storage tank and the pulper; the auxiliary agent adding device is pipe-connected to the pulp mixing tank; and the control box is used for controlling the actions of the pulper, the supply water tank and the circulating pump.

[0007] Furthermore, a plurality of concentration sensors are arranged in the pulp storage tank, control valves are arranged on the pipelines between the supply water tank and the pulper, between the pulper and the pulp mixing tank, and between the supply water tank and the pulp mixing tank, and the concentration sensors and all control valves are electrically connected to the control box.

[0008] Furthermore, the slurry adjusting tank is provided with a plurality of partitions that can be opened and closed, and the partitions divide the slurry adjusting tank into a plurality of adjusting sections, and the output ends of the supply water tank and the auxiliary agent adding device are connected to all the adjusting sections.

[0009] Furthermore, the additive adding device includes a liquid storage tank, a supply pipe, a supply pump and a plurality of shunt pipes, the liquid storage tank is connected to all the shunt pipes through the supply pipe, and all the shunt pipes are respectively connected to the corresponding regulating sections; the supply pump is arranged on the supply pipe, each of the shunt pipes is provided with a regulating valve, all the regulating sections are provided with online concentration meters, and all the online concentration meters and all the regulating valves are electrically connected to the control box.

[0010] Furthermore, a flow meter is provided on the pipeline between the slurry storage tank and the sand removal and filtering device, and the flow meter is electrically connected to the control box.

[0011] Furthermore, a proportional valve is provided on the pipeline between the slurry storage tank and the sand removal and filtering device, and the proportional valve is electrically connected to the control box.

[0012] Furthermore, the control box is provided with a controller and a power supply, the power supply is electrically connected to the controller, the control box is provided with a control panel, the control panel is electrically connected to the controller, and the controller is bidirectionally communicatively connected to the pulper, the supply water tank and the circulation pump.

[0013] Furthermore, the feeding device includes an elevator, a crushing bin and a conveyor belt. The output end of the elevator is connected to the feeding end of the crushing bin. A plurality of crushing augers are arranged in the crushing bin. All of the crushing augers can twist the material in the crushing bin to the conveyor belt. The output end of the conveyor belt is connected to the feeding port of the pulper.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] In addition to the necessary pulping machine, the automatic pulping system of the utility model is also designed with a supply water tank and a pulp storage tank in the pulping device. The pulp storage tank is used to temporarily store the evenly stirred pulp, and the pulp concentration can be adjusted step by step by designing a pulp mixing tank in combination with the supply water tank, so as to achieve precise adjustment. The sand removal and filtration device can effectively remove particulate impurities in the pulp to avoid affecting the later pulp forming. The additive adding device is connected to the pulp mixing tank by pipe, so that the additive and the pulp can be fully mixed while adjusting the pulp concentration, so that the final adjusted pulp can meet the design requirements, thereby achieving precise pulping.

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 It is a structural schematic diagram of another embodiment of the utility model;

[0019] Figure 3 It is a top view of the feeding device in the embodiment of the utility model;

[0020] Figure 4 It is a control principle diagram in an embodiment of the utility model.

[0021] Explanation of the accompanying drawings: feeding device 10, elevator 11, crushing bin 12, conveyor belt 13, crushing auger 14, pulping device 20, pulper 21, supply water tank 22, slurry storage tank 23, sand removal and filtering device 24, slurry mixing tank 25, circulation pump 26, concentration sensor 27, control valve 28, partition 29, regulating section 2a, flow meter 2b, proportional valve 2c, auxiliary agent adding device 30, liquid storage tank 31, supply pipe 32, supply pump 33, diverter pipe 34, regulating valve 35, online concentration meter 36, control box 40, controller 41, power supply 42, control panel 43. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] Reference Figures 1 to 4 An automatic pulping system shown in the figure comprises a feeding device 10, a pulping device 20, an auxiliary agent adding device 30 and a control box 40, wherein the feeding device 10 is used for feeding plant fiber blocks; the pulping device 20 comprises a pulper 21, a supply water tank 22 and a pulp storage tank 23, wherein the pulper 21 can receive the plant fiber blocks conveyed by the feeding device 10, and the supply water tank 22 and the pulp storage tank 23 are both connected to the pulper 21 through a pipeline; the output end of the pulp storage tank 23 is connected to a sand removal and filtering device 24 and a pulp mixing tank 25 through a pipeline in sequence, the pulp mixing tank 25 is pipe-connected to the pulp storage tank 23, the supply water tank 22 is pipe-connected to the pulp mixing tank 25, and a circulating pump 26 is arranged on the pipeline between the pulp storage tank 23 and the pulper 21; the auxiliary agent adding device 30 is pipe-connected to the pulp mixing tank 25; the control box 40 is used for controlling the actions of the pulper 21, the supply water tank 22 and the circulating pump 26.

[0024] In order to better control in the present application, the control box 40 can realize remote control or can be a conventional on-site control cabinet. The main function of the slurry mixing tank 25 is to adjust the concentration of the slurry, and the slurry mixing tank 25 is adjusted by controlling the water supply of the water tank 22 and the flow rate of the slurry flowing into the slurry mixing tank 25. The conventional adjustment method can control the water supply of the water tank 22 according to the amount of plant fiber put into the pulper 21.

[0025] In addition to the necessary pulper 21, the automatic pulping system is also designed with a supply water tank 22 and a pulp storage tank 23 in the pulping device 20. The pulp storage tank 23 is used to temporarily store the evenly stirred pulp, and the pulp concentration can be adjusted step by step by designing a pulp adjustment tank 25 in combination with the supply water tank 22 to achieve precise adjustment. The sand removal and filtration device 24 can effectively remove particulate impurities in the pulp to avoid affecting the subsequent pulp molding. The additive adding device 30 is connected to the pulp adjustment tank 25 by pipes, so that the additives and the pulp can be fully mixed while adjusting the pulp concentration, so that the final adjusted pulp can meet the design requirements, thereby achieving precise pulp adjustment.

[0026] In the above embodiment, in order to better adjust, it can be adjusted in real time according to the condition of the slurry in the slurry mixing tank 25. In one embodiment of the present application, a plurality of concentration sensors 27 are arranged in the slurry storage tank 23, and control valves 28 are arranged on the pipelines between the supply water tank 22 and the pulper 21, between the pulper 21 and the slurry mixing tank 25, and between the supply water tank 22 and the slurry mixing tank 25. The concentration sensor 27 and all the control valves 28 are electrically connected to the control box 40. The water supply of the supply water tank 22 is adjusted by detecting the concentration of the slurry in real time.

[0027] In the above-mentioned improvement scheme, in order to better adjust the concentration of the slurry and realize staged adjustment and precise adjustment, the slurry adjustment tank 25 is provided with a plurality of partitions 29 that can be opened and closed, and the partitions 29 divide the slurry adjustment tank 25 into a plurality of adjustment sections 2a, and the output ends of the supply water tank 22 and the auxiliary agent adding device 30 are connected to all the adjustment sections 2a. Through the joint adjustment of multiple adjustment sections 2a, the slurry discharged from the last adjustment section 2a can be adjusted in a high-precision micro-amount, thereby ensuring the accurate concentration of the slurry, which is conducive to the auxiliary agent adding device 30 to add additives, so that the slurry can be fully mixed with the additives at a preset concentration, and the performance of the slurry is guaranteed.

[0028] Furthermore, in order to better control the flow rate of the regulating section 2a, in one embodiment of the present application, a flow meter 2b is provided on the pipeline between the slurry storage tank 23 and the sand removal filter device 24, and the flow meter 2b is electrically connected to the control box 40. In this way, the control box 40 can control the output of the supply water tank 22 and the auxiliary agent adding device 30 according to the supply flow rate of the circulation pump 26.

[0029] In the above-mentioned improvement scheme, a proportional valve 2c is provided on the pipeline between the slurry storage tank 23 and the sand removal filter device 24, and the proportional valve 2c is electrically connected to the control box 40. The proportional valve 2c is mainly provided to facilitate closing the communication between the slurry storage tank 23 and the sand removal filter device 24, which is beneficial for the maintenance of the sand removal filter device 24 in the later stage.

[0030] See also Figure 2In one embodiment of the present application, in order to realize automatic addition of additives, the additive adding device 30 includes a liquid storage tank 31, a supply pipe 32, a supply pump 33 and a plurality of shunt pipes 34. The liquid storage tank 31 is connected to all the shunt pipes 34 through the supply pipe 32, and all the shunt pipes 34 are respectively connected to the corresponding regulating sections 2a; the supply pump 33 is arranged on the supply pipe 32, and each of the shunt pipes 34 is provided with a regulating valve 35, and all the regulating sections 2a are provided with an online concentration meter 36, and all the online concentration meters 36 and all the regulating valves 35 are electrically connected to the control box 40. Among them, the online concentration meter 36 is used to detect the concentration ratio of the additive in the slurry, and the multi-stage regulating section 2a is used for adjusting the slurry section by section, so that when the slurry flows through different regulating sections 2a, the additive can be accurately added on the basis of the adjustment of the previous section. Among them, the regulating valve 35 can be a solenoid valve.

[0031] See also Figure 4 In order to facilitate control in this application, the control box 40 is provided with a controller 41 and a power supply 42, the power supply 42 is electrically connected to the controller 41, the control box 40 is provided with a control panel 43, the control panel 43 is electrically connected to the controller 41, and the controller 41 is bidirectionally connected to the pulper 21, the supply water tank 22 and the circulation pump 26. Of course, in some improved embodiments, the controller 41 is also connected to a signal processor, which uses the signal processor to process the signals fed back by the pulper 21, the supply water tank 22 and the circulation pump 26. At the same time, in the above-mentioned embodiment improvement scheme, the controller 41 is also connected to the above-mentioned line concentration meter 36, the supply pump 33, the proportional valve 2c, the flow meter 2b, the concentration sensor 27 and all the control valves 28, which is conducive to the staff to control the state of the above-mentioned equipment according to the control panel 43. In fact, in some embodiments, the controller 41 is also connected to a wireless communication module, which uses the wireless communication module to communicate with an external mobile terminal or control terminal. In addition, a memory is also provided in the control box 40, and all signals received by the controller 41 are stored in the memory, so that the staff can query them later through the control panel 43. It should be noted that the controller 41, memory and signal processor are all conventional electronic components, so the connection and working principle between them are not described in detail in this application.

[0032] See also Figure 1 and Figure 3In one embodiment of the present application, in order to improve the feeding effect of plant fibers, the feeding device 10 includes an elevator 11, a crushing bin 12 and a conveyor belt 13. The output end of the elevator 11 is connected to the feeding end of the crushing bin 12. A plurality of crushing augers 14 are arranged in the crushing bin 12. All the crushing augers 14 can twist and deliver the materials in the crushing bin 12 to the conveyor belt 13. The output end of the conveyor belt 13 is connected to the feed port of the pulper 21. Among them, the elevator 11 is a bucket-type lifting device, which is conducive to the external forklift to transfer the plant fibers to the lifting bucket of the elevator 11. The crushing bin 12 can be used as a temporary storage bin and a crushing structure, which is conducive to the output of plant fibers according to demand. While feeding, the crushing augers 14 can also cooperate with each other to break the blocky plant fibers into small pieces, which is conducive to the subsequent crushing and stirring of the pulper 21.

[0033] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An automatic slurry mixing system, characterized in that: include A feeding device, which is used to feed the plant fiber blocks; The pulping device comprises a pulper, a supply water tank and a pulp storage tank, wherein the pulper can receive the plant fiber blocks conveyed by the feeding device, and the supply water tank and the pulp storage tank are both connected to the pulper through a pipeline; the output end of the pulp storage tank is connected to a sand removal filter device and a pulp mixing tank through a pipeline in sequence, the pulp mixing tank is connected to the pulp storage tank through a pipe, the supply water tank is connected to the pulp mixing tank through a pipe, and a circulation pump is arranged on the pipeline between the pulp storage tank and the pulper; An additive adding device, which is connected to the slurry mixing tank pipe; A control box is used to control the actions of the pulper, the supply water tank and the circulation pump.

2. The automatic slurry mixing system according to claim 1, characterized in that: A plurality of concentration sensors are arranged in the pulp storage tank, and control valves are arranged on the pipelines between the supply water tank and the pulper, between the pulper and the pulp mixing tank, and between the supply water tank and the pulp mixing tank. The concentration sensors and all the control valves are electrically connected to the control box.

3. The automatic slurry mixing system according to claim 1, characterized in that: The slurry mixing tank is provided with a plurality of partitions that can be opened and closed, and the partitions divide the slurry mixing tank into a plurality of adjustment sections, and the output ends of the supply water tank and the auxiliary agent adding device are both connected with all the adjustment sections.

4. The automatic slurry mixing system according to claim 3, characterized in that: The auxiliary agent adding device includes a liquid storage tank, a supply pipe, a supply pump and a plurality of shunt pipes. The liquid storage tank is connected to all the shunt pipes through the supply pipe, and all the shunt pipes are respectively connected to the corresponding regulating sections; the supply pump is arranged on the supply pipe, and each of the shunt pipes is provided with a regulating valve, and all the regulating sections are provided with online concentration meters, and all the online concentration meters and all the regulating valves are electrically connected to the control box.

5. The automatic slurry mixing system according to claim 1, characterized in that: A flow meter is provided on the pipeline between the slurry storage tank and the sand removal and filtering device, and the flow meter is electrically connected to the control box.

6. An automatic slurry mixing system according to any one of claims 1 to 5, characterized in that: A proportional valve is arranged on the pipeline between the slurry storage tank and the sand removal and filtering device, and the proportional valve is electrically connected to the control box.

7. An automatic slurry mixing system according to any one of claims 1 to 5, characterized in that: The control box is provided with a controller and a power supply, the power supply is electrically connected to the controller, the control box is provided with a control panel, the control panel is electrically connected to the controller, and the controller is connected to the pulper, the supply water tank and the circulation pump for two-way communication.

8. An automatic slurry mixing system according to any one of claims 1 to 5, characterized in that: The feeding device includes an elevator, a crushing bin and a conveyor belt. The output end of the elevator is connected to the feeding end of the crushing bin. A plurality of crushing augers are arranged in the crushing bin. All the crushing augers can twist and deliver the material in the crushing bin to the conveyor belt. The output end of the conveyor belt is connected to the feeding port of the pulper.

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