Centrifuge and its anti-clogging salt discharge system

Abstract

The utility model belongs to the technical field of industrial salt production equipment, concretely relates to a centrifugal machine, and the device includes: centrifugal machine main part, its upper end is provided with the feed pipe, and the lower extreme is provided with the discharge hopper, turbidness appearance, its detection end stretches into centrifugal machine main part in, is used for detecting the solid -liquid mixed concentration of wet salt slurry in centrifugal machine main part, make -up water pipe, it is linked together with outside water source, and make -up water pipe is provided with solenoid valve on, wherein, turbidness appearance and solenoid valve all with a control module electric connection, control module is configured as: receiving concentration data that turbidness appearance detects, when concentration data exceeds the preset concentration value, opens solenoid valve, when concentration data exceeds the preset concentration value, closes solenoid valve.

Description

Technical Field

[0001] This utility model belongs to the technical field of industrial salt production equipment, and in particular relates to a centrifuge and its anti-clogging salt discharging system. Background Technology

[0002] In industrial production, centrifuges are commonly used to separate solid particles from liquids in suspensions, and are widely used in salt production or processes involving salt separation. Due to the characteristics of salts, such as their tendency to crystallize and clump after absorbing moisture, centrifuges often face the problem of discharge port blockage during the salt discharge process.

[0003] Existing technologies prevent centrifuge outlet blockage by using methods such as hammering the discharge port, installing a stirring device at the discharge port, or using a rotating drum shaft to drive the stirring device, and employing scraper structures. However, some anti-blockage devices are not securely connected to the centrifuge, and are prone to loosening during high-speed centrifuge operation, affecting their anti-blockage effectiveness. Furthermore, most existing devices do not consider intervention in the salt crystallization process, only passively cleaning after blockage occurs. Passive cleaning suffers from poor effectiveness, complex structure, and inconvenient maintenance.

[0004] Therefore, how to design a centrifuge that can actively intervene and prevent clogging during the salt crystallization stage is a technical problem that urgently needs to be solved by those skilled in the art.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0006] This disclosure provides at least one centrifuge and its anti-clogging salt dispensing system.

[0007] In a first aspect, embodiments of this disclosure provide a centrifuge, comprising: The centrifuge body has a feed pipe at the upper end and a discharge hopper at the lower end; A turbidimeter, the detection end of which extends into the centrifuge body, is used to detect the solid-liquid mixture concentration of the wet salt slurry inside the centrifuge body; The water supply pipe has one end connected to the centrifuge body and the other end connected to an external water source, and a solenoid valve is installed on the water supply pipe. The turbidimeter and the solenoid valve are both electrically connected to a control module, which is configured to: receive concentration data detected by the turbidimeter; open the solenoid valve when the concentration data exceeds a preset concentration value; and close the solenoid valve when the concentration data exceeds the preset concentration value.

[0008] In one optional implementation, the preset concentration value is 70%-90% of the saturation concentration of the target salt solution.

[0009] In one optional embodiment, a pressure sensor is provided on the inner wall of the discharge hopper. Both the pressure sensor and the centrifuge's feed switch are electrically connected to a control module. The control module is adapted to receive pressure data detected by the pressure sensor and is configured to: When the pressure on the inner wall of the discharge hopper exceeds the preset pressure value, the feed switch is turned off.

[0010] In one optional implementation, the preset pressure value is 80% of the rated maximum working pressure value of the discharge hopper.

[0011] In one alternative embodiment, a discharge hose is provided at the lower end of the discharge hopper, and the discharge hose is assembled onto the discharge hopper via a connecting flange.

[0012] Secondly, this disclosure also provides a centrifuge detection anti-clogging salt dispensing system, including: a turbidimeter, the detection end of which extends into the centrifuge body for detecting the solid-liquid mixture concentration of the wet salt slurry in the centrifuge body; wherein the centrifuge body is connected to a water supply pipe; The control module is electrically connected to the turbidity meter and is configured to: receive concentration data detected by the turbidity meter; send an opening command to the solenoid valve installed on the water supply pipe when the concentration data exceeds a preset concentration value; and send a closing command to the solenoid valve when the concentration data is lower than the preset concentration value.

[0013] In one optional implementation, the preset concentration value is 70%-90% of the saturation concentration of the target salt solution.

[0014] In an alternative embodiment, a pressure sensor is also included, which is disposed on the inner wall of the centrifuge body discharge hopper. The control module is electrically connected to the pressure sensor and the centrifuge's feed switch, and is configured to receive pressure data detected by the pressure sensor, and to close the feed switch when the pressure on the inner wall of the discharge hopper exceeds a preset pressure value.

[0015] In one optional implementation, the preset pressure value is 80% of the rated maximum working pressure value of the discharge hopper.

[0016] The beneficial effect of this invention is that, by installing a turbidity meter inside the centrifuge body, the solid-liquid mixing concentration of the wet salt slurry inside the centrifuge can be detected in real time. When the concentration exceeds the preset concentration value, the control module opens the solenoid valve to add water to the centrifuge to dilute the wet salt slurry, thereby preventing the salt in the solution from becoming saturated and crystallizing and clogging the centrifuge outlet. This achieves automatic intervention in salt crystallization in the wet salt slurry from the source.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and drawings.

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A structural diagram of a centrifuge provided in an embodiment of this disclosure; Figure 2 This is a schematic block diagram of a centrifuge control module provided in an embodiment of the present disclosure.

[0021] In the picture: 100. Centrifuge body; 110. Feed pipe; 120. Discharge hopper; 200. Turbidity meter; 210. Detection end; 300. Water supply pipe; 310. Solenoid valve; 400. Pressure sensor; 600. Discharge hose; 700. Connecting flange. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0024] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0025] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0026] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0027] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0028] Research has revealed the following drawbacks of existing technologies: Current technologies prevent centrifuge outlet blockage by using methods such as hammering the discharge port, installing a stirring device at the discharge port, or using a rotating drum shaft to drive the stirring device, and employing scraper structures. However, the connection between some anti-blocking devices and the centrifuge is not secure enough, and they are prone to loosening during high-speed centrifuge operation, affecting their anti-blocking effectiveness. Furthermore, most existing devices do not consider intervention in the salt crystallization process, only passively cleaning after blockage occurs. Passive cleaning suffers from poor effectiveness, complex structure, and inconvenient maintenance.

[0029] Based on the above research, this disclosure provides a centrifuge that uses a turbidimeter to detect the concentration of the solution inside the centrifuge in real time. The control module controls the opening and closing of the solenoid valve according to the concentration data to automatically control the saturation of salt in the solution and intervene in advance before crystallization, thus preventing crystallization from clogging the centrifuge outlet.

[0030] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0033] See Figure 1 and Figure 2This disclosure provides a centrifuge, including: a centrifuge body 100, with a feed pipe 110 at its upper end and a discharge hopper 120 at its lower end; the wet salt slurry to be processed is fed into the centrifuge body 100 through the feed pipe 110, and after centrifugation, the solid salt crystals, carrying 15%-25% residual mother liquor, form wet salt, which is continuously discharged from the discharge hopper 120. A turbidimeter 200 is installed inside the centrifuge body 100, with its detection end 210 extending into the centrifuge body 100 for real-time detection of the solid-liquid mixing concentration of the wet salt slurry inside the centrifuge body 100. A water supply pipe 300 is also provided on the centrifuge body 100, with one end connected to the centrifuge body 100 and the other end connected to an external water source, and a solenoid valve 310 is also provided on the water supply pipe 300. Both the turbidimeter 200 and the solenoid valve 310 are electrically connected to a control module. The control module is configured to: receive concentration data detected by the turbidimeter 200; when the concentration data exceeds a preset value, open the solenoid valve 310 to replenish water to the centrifuge, preventing excessive salt concentration in the wet brine from crystallizing and clogging the centrifuge outlet; when the concentration data is below the preset value, close the solenoid valve 310 to prevent excessively low salt concentration in the wet brine from affecting the separation effect. Through these settings, automatic intervention in salt crystallization in the solution is achieved at the source, thereby preventing saturated salt crystallization in the wet brine from clogging the centrifuge outlet. See also Figure 1 In some embodiments, the preset concentration value is 70%-90% of the saturation concentration of the target salt solution, preferably 80%.

[0034] See Figure 1 and Figure 2 In some embodiments, a pressure sensor 400 is installed on the inner wall of the discharge hopper 120, which is suitable for real-time detection of the pressure value of the inner wall of the discharge hopper 120. Both the pressure sensor 400 and the centrifuge's feed switch are electrically connected to the control module. The control module is adapted to receive the pressure data detected by the pressure sensor 400 and is configured to shut off the feed switch when the pressure on the inner wall of the discharge hopper 120 exceeds a preset pressure value. On-site workers can perform maintenance and inspection of the centrifuge according to the actual situation.

[0035] See also Figure 1 In some embodiments, the preset pressure value is 80% of the rated maximum working pressure value of the discharge hopper 120.

[0036] See also Figure 1 In some embodiments, a discharge hose 600 is provided at the lower end of the discharge hopper 120, and the discharge hose 600 is assembled onto the discharge hopper 120 via a connecting flange 700. As the centrifuge operates at high speed, the discharge hose 600 will periodically oscillate, which can prevent crystal accumulation. The detachable design of the connecting flange 700 facilitates the later maintenance and replacement of the discharge hose 600.

[0037] See Figure 1 and Figure 2 Some embodiments also provide a centrifuge detection anti-clogging salt dispensing system, including: a turbidimeter 200, the detection end 210 of which extends into the centrifuge body 100 for detecting the solid-liquid mixture concentration of the wet salt slurry in the centrifuge body 100; wherein the centrifuge body 100 is connected to a water supply pipe 300; and a control module electrically connected to the turbidimeter 200 and configured to: receive concentration data detected by the turbidimeter 200; send an opening command to a solenoid valve 310 provided on the water supply pipe 300 when the concentration data exceeds a preset concentration value; and send a closing command to the solenoid valve 310 when the concentration data is lower than the preset concentration value.

[0038] Furthermore, in some embodiments, the preset concentration value is 70%-90% of the saturation concentration of the target salt solution.

[0039] See Figure 1 In some embodiments, the above-mentioned anti-clogging salt discharge system also includes a pressure sensor 400, which is disposed on the inner wall of the discharge hopper 120 below the centrifuge body 100; the control module is electrically connected to the pressure sensor 400 and the centrifuge feed switch, and is configured to receive pressure data detected by the pressure sensor, and to close the feed switch when the pressure on the inner wall of the discharge hopper exceeds a preset pressure value.

[0040] Furthermore, in some embodiments, the preset pressure value is 80% of the rated maximum working pressure of the discharge hopper. As a specific implementation method, the control module may be, but is not limited to, a PLC module (Siemens S7-1200), the turbidimeter 200 may be a Hach turbidimeter 200 (Solitax SC), and the solenoid valve 310 may be a Burkert 2832.

[0041] The methods described in this embodiment for opening or closing the solenoid valve 310 based on the concentration data detected by the turbidimeter 200 and for closing the feed switch based on the pressure data detected by the pressure sensor 400 are both existing technologies. This embodiment does not make any substantial improvements to the above methods.

[0042] In summary, this centrifuge, by installing a turbidity meter 200 inside the centrifuge body 100, can detect the solid-liquid mixing concentration of the wet salt slurry in the centrifuge in real time. When the concentration exceeds the preset concentration value, the control module opens the solenoid valve 310 to add water to the centrifuge to dilute the wet salt slurry, thereby preventing the salt in the solution from becoming saturated and crystallizing and clogging the centrifuge outlet. This achieves automatic intervention in salt crystallization in the wet salt slurry from the source.

[0043] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0045] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0046] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0047] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A centrifuge, characterized in that, include: The centrifuge body (100) has a feed pipe (110) at its upper end and a discharge hopper (120) at its lower end. A turbidimeter (200) with its detection end (210) extending into the centrifuge body (100) is used to detect the solid-liquid mixture concentration of the wet salt slurry in the centrifuge body (100); A water supply pipe (300) is connected at one end to the centrifuge body (100) and at the other end to an external water source. A solenoid valve (310) is installed on the water supply pipe (300). The turbidimeter (200) and the solenoid valve (310) are both electrically connected to a control module. The control module is configured to: receive concentration data detected by the turbidimeter (200); open the solenoid valve (310) when the concentration data exceeds a preset concentration value; and close the solenoid valve (310) when the concentration data is lower than the preset concentration value.

2. The centrifuge as described in claim 1, characterized in that, The preset concentration value is 70%-90% of the saturation concentration of the target salt solution.

3. The centrifuge as described in claim 1, characterized in that, The inner wall of the unloading hopper (120) is provided with a pressure sensor (400), and the pressure sensor (400) and the feed switch of the centrifuge are both electrically connected to the control module. The control module is adapted to receive pressure data detected by the pressure sensor (400) and is configured to: close the feed switch when the pressure on the inner wall of the discharge hopper (120) exceeds a preset pressure value.

4. The centrifuge as described in claim 3, characterized in that, The preset pressure value is 80% of the rated maximum working pressure value of the discharge hopper (120).

5. The centrifuge as described in claim 1, characterized in that, The lower end of the unloading hopper (120) is provided with a discharge hose (600), which is assembled on the unloading hopper (120) through a docking flange (700).

6. A centrifuge detection anti-clogging salt dispensing system, characterized in that, include: A turbidimeter (200) has its detection end (210) inserted into the centrifuge body (100) to detect the solid-liquid mixture concentration of the wet salt slurry in the centrifuge body (100); wherein the centrifuge body (100) is connected to a water supply pipe (300). The control module is electrically connected to the turbidity meter (200) and is configured to: receive the concentration data detected by the turbidity meter (200); send an opening command to the solenoid valve (310) set on the water supply pipe (300) when the concentration data exceeds the preset concentration value; and send a closing command to the solenoid valve (310) when the concentration data is lower than the preset concentration value.

7. The anti-clogging salt outlet system as described in claim 6, characterized in that, The preset concentration value is 70%-90% of the saturation concentration of the target salt solution.

8. The anti-clogging salt outlet system as described in claim 6, characterized in that, It also includes a pressure sensor (400) which is located on the inner wall of the discharge hopper (120) of the centrifuge body (100); the control module is electrically connected to the pressure sensor (400) and the centrifuge feed switch, and is configured to receive pressure data detected by the pressure sensor (400), and to close the feed switch when the pressure on the inner wall of the discharge hopper (120) exceeds a preset pressure value.

9. The anti-clogging salt outlet system as described in claim 8, characterized in that, The preset pressure value is 80% of the rated maximum working pressure value of the discharge hopper (120).

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