Intelligent processing system for molding new sand for nodular cast iron pipe fitting

Through the control of the humidity detection device and electric shutter plate, the problems of energy waste and boiling bin wear in the new sand supply system are solved, and the efficient and precise transportation of the new sand is achieved.

CN223210424UActive Publication Date: 2025-08-12SAINT GOBAIN PIPELINES CO LTD +1
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Patent Information

Application Number
CN202421984633.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-16
Publication Date
2025-08-12
Estimated Expiration
2034-08-16

AI Technical Summary

Technical Problem

The existing new sand supply system still requires fans to work when the new sand moisture content does not need to be air-dry, resulting in waste of energy and wear of boiling tanks.

Method used

The humidity of the new sand is detected through the humidity detection device, and the start and stop of the electric shutter plate and the fan are controlled to achieve reasonable distribution of the new sand and avoid unnecessary air drying.

Benefits of technology

It reduces energy waste and wear of boiling tanks, and improves the efficiency and accuracy of new sand transportation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an intelligent processing system for molding new sand for a nodular cast iron pipe fitting, and belongs to the technical field of intelligent new sand processing systems. Comprising an original sand conveying pipeline, the original sand conveying pipeline is arranged at the upper end of a boiling bin, a fan is arranged on one side of the boiling bin and connected with the boiling bin through an air supply pipe, a sending tank is arranged below the boiling bin, and a sand storage tank is arranged on one side of the sending tank. The sending tank is connected with the boiling bin and the sand storage tank through conveying pipes, the original sand conveying pipeline is connected with the sending tank through a sand conveying branch pipeline, an electric flashboard is installed between the original sand conveying pipeline and the sand conveying branch pipeline, and a humidity detection device is arranged at an inlet of the original sand conveying pipeline. By detecting the humidity of the new sand and controlling the electric flashboard in the pipeline, the new sand conveying is reasonably distributed, the use of a fan is reduced, and the effects of reducing energy waste and abrasion of the boiling bin are achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of intelligent new sand processing systems, in particular to an intelligent processing system for new sand used for molding ductile iron pipe fittings. Background Art

[0002] New sand is a crucial raw material in the production of ductile iron pipe fittings. New sand, bentonite, and pulverized coal are mixed in a specific ratio to create the molding sand needed for ductile iron pipe fittings. During the production process, there is a certain amount of loss in molding sand, and burnt sand is regularly disposed of. Therefore, the molding sand production system needs to be replenished with a certain amount of new sand and other raw materials at regular intervals. The existing new sand supply system grinds the new sand into a boiling chamber for air drying. From there, the sand is fed to a delivery tank and pumped into a sand storage tank for later use.

[0003] In the existing new sand supply system, no matter whether the new sand contains water or not, it must be air-dried before being sent to the sand storage tank for standby. In this way, the fan that supplies air to the boiling bin is always in working condition. Moreover, the new sand is generally delivered from the outside on sunny days. In most cases, the water content is very low or even no water. Even if it is known that the new sand does not need to be air-dried, the new sand still needs to be sent to the boiling bin and sent to the boiling bin outlet by the wind generated by the fan. On the one hand, it causes unnecessary waste of electricity, and on the other hand, it increases the loss of the boiling bed. Utility Model Content

[0004] The purpose of the utility model is to provide an intelligent processing system for new sand used for molding ductile iron pipe fittings. By detecting the humidity of the new sand and controlling the electric gate in the pipeline, the new sand delivery is reasonably distributed, the use of fans is reduced, and energy waste and boiling bin wear are reduced, thereby solving the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an intelligent processing system for new sand for molding ductile iron pipe fittings, comprising an original sand delivery pipeline, wherein the original sand delivery pipeline is arranged at the upper end of a boiling bin, a fan is provided on one side of the boiling bin, the fan is connected to the boiling bin through an air supply pipe, a sending tank is provided below the boiling bin, a sand storage tank is provided on one side of the sending tank, the sending tank is respectively connected to the boiling bin and the sand storage tank through a conveying pipe, the original sand delivery pipeline is connected to the sending tank through a sand delivery branch pipeline, an electric gate is installed between the original sand delivery pipeline and the sand delivery branch pipeline, and a humidity detection device is provided at the inlet of the original sand delivery pipeline.

[0006] Preferably, the humidity detection device includes a humidity sensing device and a controller, and the humidity sensing device is used to detect the humidity of the new sand entering from the original sand delivery pipeline.

[0007] Preferably, the controller is electrically connected to the humidity sensing device for setting an initial humidity value.

[0008] Preferably, the fan and the electric gate are both electrically connected to a controller, and the controller is used to control the electric gate 9 to close the sand delivery branch pipe and control the fan to start when it detects that the humidity of the new sand reaches or exceeds a set value.

[0009] Preferably, the controller is further configured to control the electric gate 9 to close the original sand delivery pipeline and control the fan not to start when it detects that the humidity of the new sand is lower than a set value.

[0010] Preferably, the humidity detection device further includes a display, and the display is electrically connected to the controller for displaying humidity information detected by the controller.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. The utility model is an intelligent processing system for new sand for molding ductile iron pipe fittings. It uses the humidity of the new sand to trigger the signal of the humidity detection device, which can automatically and quickly control the rotation of the electric gate, and more accurately introduce the new sand into different sand delivery pipelines, avoiding the problem that the new sand must pass through the boiling bin and the fan must be turned on all the time.

[0013] 2. The utility model is an intelligent processing system for new sand for molding ductile iron pipe fittings. It is easier to control and occupies a small area. It can realize automatic sand supply and diversion of new sand, reduce the time when new sand passes through the boiling bin through the fan, and easily achieve the effect of reducing energy waste and boiling bin wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 A magnified view of part A;

[0016] Figure 3 This is a system module diagram of the present utility model.

[0017] In the figure: 1. Original sand delivery pipeline; 2. Boiling chamber; 3. Air supply pipe; 4. Fan; 5. Sending tank; 6. Sand storage tank; 7. Sand delivery branch pipeline; 8. Humidity detection device; 9. Electric gate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-3 , this embodiment provides the following technical solutions:

[0020] An intelligent processing system for molding new sand for ductile iron pipe fittings, comprising an original sand delivery pipeline 1, which is arranged at the upper end of a boiling bin 2, a fan 4 is provided on one side of the boiling bin 2, and the fan 4 is connected to the boiling bin 2 through an air supply pipe 3, a sending tank 5 is provided below the boiling bin 2, a sand storage tank 6 is provided on one side of the sending tank 5, and the sending tank 5 is respectively connected to the boiling bin 2 and the sand storage tank 6 through a conveying pipe, the original sand delivery pipeline 1 is connected to the sending tank 5 through a sand delivery branch pipeline 7, an electric gate 9 is installed between the original sand delivery pipeline 1 and the sand delivery branch pipeline 7, and a humidity detection device 8 is provided at the entrance of the original sand delivery pipeline 1, by dividing a sand delivery branch pipeline 7 on the original sand delivery pipeline entering the boiling bin 2, an electric gate 9 is installed between the sand delivery branch pipeline 7 and the original sand delivery pipeline 1, and a set of humidity detection devices 8 is installed at the entrance of the original sand delivery pipeline 1. When new sand enters the original sand delivery pipeline 1, the humidity detection device 8 detects the water content in the new sand. When the water content reaches or exceeds the set value, the electric gate 9 between the sand delivery branch pipeline 7 and the original sand delivery pipeline 1 closes the sand delivery branch pipeline 7, and the new sand enters the boiling bin 2 along the original sand delivery pipe. The fan 4 sends air to dry the new sand, and then sends the new sand out of the boiling bin 2, enters the sending tank 5, and finally is driven into the sand storage tank 6 for standby use; when the water content is lower than the set value, the electric gate 9 between the sand delivery branch pipeline 7 and the original sand delivery pipeline 1 closes the original sand delivery pipeline 1, and the new sand directly enters the sending tank 5 along the sand delivery branch pipeline 7 and is driven into the sand storage tank 6 for standby use, and the fan 4 of the boiling bin 2 does not start working.

[0021] The humidity detection device 8 includes a humidity sensor and a controller. The humidity sensor is used to detect the humidity of the new sand entering from the original sand delivery pipeline 1.

[0022] The controller is electrically connected to the humidity sensor device and is used to set an initial humidity value.

[0023] The fan 4 and the electric gate 9 are both electrically connected to the controller. When the controller detects that the humidity of the new sand reaches or exceeds the set value, it controls the electric gate 9 to close the sand delivery branch pipe 7 and controls the fan 4 to start.

[0024] The controller is also used to control the electric gate 9 to close the original sand delivery pipeline 1 and control the fan 4 not to start when it detects that the humidity of the new sand is lower than the set value.

[0025] The humidity detection device 8 further includes a display, and the display is electrically connected to the controller for displaying humidity information detected by the controller.

[0026] Working principle: When in use, when new sand is fed in, the inlet humidity detection device 8 detects the humidity of the new sand. When the humidity reaches or exceeds the set value, the electric gate 9 closes the sand delivery branch pipe 7, and the new sand enters the boiling bin 2. The fan 4 starts and sends air into the boiling bin 2 through the air supply pipe 3, drying the new sand and conveying it forward. After the new sand reaches the outlet of the boiling bin 2, it falls into the sending tank 5 and is finally driven into the sand storage tank 6 through the sending tank 5. When the humidity is lower than the set value, the electric gate 9 closes the original sand delivery pipe 1, and the new sand falls directly into the sending tank 5 through the sand delivery branch pipe 7, and is then driven into the sand storage tank 6 through the sending tank 5. The fan 4 does not start.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An intelligent processing system for new sand used in molding ductile iron pipe fittings, comprising an original sand delivery pipeline (1), characterized in that: The original sand delivery pipeline (1) is arranged at the upper end of the boiling bin (2); a fan (4) is arranged on one side of the boiling bin (2); the fan (4) is connected to the boiling bin (2) through an air supply pipe (3); a sending tank (5) is arranged below the boiling bin (2); a sand storage tank (6) is arranged on one side of the sending tank (5); the sending tank (5) is respectively connected to the boiling bin (2) and the sand storage tank (6) through a delivery pipe; the original sand delivery pipeline (1) is connected to the sending tank (5) through a sand delivery branch pipeline (7); an electric gate (9) is installed between the original sand delivery pipeline (1) and the sand delivery branch pipeline (7); and a humidity detection device (8) is provided at the entrance of the original sand delivery pipeline (1).

2. The intelligent processing system for new molding sand for ductile iron pipe fittings according to claim 1, characterized in that: The humidity detection device (8) comprises a humidity sensor and a controller, wherein the humidity sensor is used to detect the humidity of new sand entering from the original sand delivery pipeline (1).

3. The intelligent processing system for new molding sand for ductile iron pipe fittings according to claim 2, characterized in that: The controller is electrically connected to the humidity sensor device and is used to set an initial humidity value.

4. The intelligent processing system for new molding sand for ductile iron pipe fittings according to claim 2, characterized in that: The fan (4) and the electric gate (9) are both electrically connected to a controller. The controller is used to control the electric gate (9) to close the sand delivery branch pipe (7) and to start the fan (4) when detecting that the humidity of the new sand reaches or exceeds a set value.

5. The intelligent processing system for new molding sand for ductile iron pipe fittings according to claim 2, characterized in that: The controller is also used for controlling the electric gate (9) to close the original sand delivery pipeline (1) and controlling the fan (4) not to start when it detects that the humidity of the new sand is lower than a set value.

6. The intelligent processing system for new molding sand for ductile iron pipe fittings according to claim 2, characterized in that: The humidity detection device (8) further comprises a display, and the display is electrically connected to the controller and is used for displaying humidity information detected by the controller.