Cooling temperature control system of environment-friendly rich mineral paper extruder

Abstract

According to the environment-friendly rich mineral paper extruder cooling temperature control system provided by the utility model, cooling water is introduced into the first heat conduction water jacket and the second heat conduction water jacket to cool the machine barrel, and the first heating device on the outer wall of the first heat conduction water jacket and the second heating device on the outer wall of the second heat conduction water jacket are used for heating the machine barrel; in the preheating process before equipment is operated, the first electromagnetic valve on the first cooling water inlet pipeline and the second electromagnetic valve on the second cooling water inlet pipeline are in a closed state, and cooling inlet water cannot enter the first heat conduction water jacket and the second heat conduction water jacket; the first check valve and the second check valve can discharge water which is slowly heated and expanded in the first heat conduction water jacket and the second heat conduction water jacket through the first check valve and the second check valve, and the water return pressure cannot reversely enter the water jackets through the check valves, so that the temperature can be safely increased to 100 DEG C or above through preheating; the problem that in the prior art, when an extruder is preheated, a water jacket is closed, and equipment is damaged is solved.

Description

Technical Field

[0001] The utility model relates to the field of stone paper processing, in particular to a cooling temperature control system of an environmentally friendly stone paper extruder. Background Art

[0002] The second and third sections (vacuum window) of the barrel of the environmentally friendly stone paper thick paper machine extruder adopt an external aluminum water jacket for temperature control, and the temperature of the second and third sections of the barrel is reduced by cooling circulating water entering the water jacket. When the temperature exceeds the set value, the heating plate installed on the outside of the aluminum water jacket of the second or third section stops heating, the solenoid valve of the aluminum water jacket outlet pipe starts, and the external circulating cooling water enters the aluminum water jacket through the pipe. The cooling water absorbs the temperature and flows out from the outlet pipe solenoid valve to the external circulating cooling water return pipe through the pipe until the temperature of the second or third section drops below the set value, and the outlet pipe solenoid valve is closed. When the temperature is lower than the set value, the heating plate installed on the outside of the aluminum water jacket of the second or third section starts heating.

[0003] During the preheating process before the equipment is put into operation, there is always circulating water with pressure (inlet pressure of external circulating cooling water) in the aluminum water jacket and pipeline, so that the heating plate cannot raise the temperature to above 100℃ even if it is heated all the time. The normal preheating temperature of other temperature control sections is 180℃. The second and third sections need to be preheated to 120-150℃, and the preheating time is 1.5 hours. The second and third sections are heated for 3 hours and only reach 50-70℃, and the heating temperature is conducted away by cooling water. To solve the preheating problem, the manual valve on the water inlet pipeline will be closed during preheating, so that the aluminum water jacket and the pipeline between the manual valve and the solenoid valve will be in a closed state. During the preheating process, the heating temperature will heat the water enclosed in the aluminum water jacket. The water will generate high pressure at high temperature in the closed container, and the water can be heated to above 100℃ under high pressure.

[0004] However, the high pressure generated by water at over 100℃ often damages the pipe fittings, especially the joints of the pipe fittings, which often expand and damage due to high pressure, and even deform and damage the aluminum water jacket due to high pressure. At the same time, when the pipe fittings and water jackets are damaged, a large amount of high-temperature gas and liquid will be splashed out, which will damage the equipment and cause personal injury. Utility Model Content

[0005] In order to solve at least one of the above problems, the purpose of the embodiments disclosed in the present utility model is to provide an environmentally friendly stone paper extruder cooling and temperature control system.

[0006] In order to solve the above technical problems, the embodiments disclosed in the present utility model adopt the following technical solutions:

[0007] An environmentally friendly stone paper extruder cooling and temperature control system, the environmentally friendly stone paper extruder cooling and temperature control system comprising:

[0008] A first heat-conducting water jacket is sleeved on the barrel of the extruder, a first cooling water channel is arranged in the first heat-conducting water jacket, and a first heating device is arranged on the outer wall of the first heat-conducting water jacket;

[0009] A second heat-conducting water jacket is sleeved on the barrel, a second cooling water channel is arranged in the second heat-conducting water jacket, and a second heating device is arranged on the outer wall of the second heat-conducting water jacket;

[0010] The heat exchange system comprises a cooling water inlet, a first cooling water outlet and a second cooling water outlet;

[0011] a first cooling water inlet pipeline, one end of which is connected to the inlet of the first cooling water channel, the other end of which is connected to the first cooling water outlet, and a first solenoid valve is provided on the first cooling water inlet pipeline;

[0012] a second cooling water inlet pipeline, one end of the second cooling water inlet pipeline being connected to the inlet of the second cooling water flow channel, the other end of the second cooling water inlet pipeline being connected to the second cooling water outlet, and a second solenoid valve being arranged on the second cooling water inlet pipeline;

[0013] a first cooling water return branch pipe, one end of which is connected to the outlet of the first cooling water flow channel, and a first check valve is provided on the first cooling water return branch pipe to prevent cooling water from flowing into the first cooling water return branch pipe;

[0014] a second cooling water return branch pipe, one end of which is connected to the outlet of the second cooling water flow channel, and a second check valve is provided on the second cooling water return branch pipe to prevent cooling water from flowing into the second cooling water return branch pipe;

[0015] A cooling water return main pipe, the other end of the first cooling water return branch pipe and the other end of the second cooling water return branch pipe are both connected to the cooling water return main pipe, and the cooling water return main pipe is connected to the cooling water inlet;

[0016] The heat exchange system is used to cool the water flowing back from the cooling water inlet and output it through the first cooling water outlet and the second cooling water outlet.

[0017] In some embodiments of the present invention, a first filter is provided on the first cooling water inlet pipeline; and / or,

[0018] The second cooling water inlet pipeline is provided with a second filter.

[0019] In some embodiments of the utility model, a first manual switch valve is provided on the first cooling water inlet pipeline; and / or,

[0020] The second cooling water inlet pipeline is provided with a second manual switch valve.

[0021] In some embodiments of the utility model, the heat exchange system includes a first heat exchange device, and the first heat exchange device is used to exchange heat between the water flowing back from the cooling water inlet and the cooling water flowing out of the cooling tower.

[0022] In some embodiments of the utility model, the heat exchange system also includes a water purification device, and a filtering structure is arranged in the water purification device. The filtering structure divides the inner cavity of the water purification device into a pre-filtration space and a post-filtration space. The water flowing back from the cooling water inlet flows into the pre-filtration space after heat exchange in the first heat exchange device, and the first cooling water outlet and the second cooling water outlet are both connected to the post-filtration space.

[0023] In some embodiments of the utility model, the post-filtration space is connected to a filtered water output main pipe, the filtered water output main pipe is connected to two filtered water output branch pipes, and the two filtered water output branch pipes are respectively connected to the first cooling water outlet and the second cooling water outlet.

[0024] In some embodiments of the utility model, the environmentally friendly stone paper extruder cooling and temperature control system also includes a second heat exchange device, which is used to exchange heat between the water in the post-filtration space and the cooling water flowing out of the cooling tower.

[0025] In some embodiments of the utility model, the second heat exchange device is connected to the filtered water output main pipe via a first connecting pipe, and the connection position is located on the upstream side of each of the filtered water output branch pipes, and the second heat exchange device is connected to the lower part of the post-filtration space via a second connecting pipe.

[0026] The beneficial effects of the utility model are as follows: the embodiment disclosed in the utility model provides an environmentally friendly stone paper extruder cooling temperature control system, the first hot water conducting jacket and the second hot water conducting jacket are arranged on the barrel, the barrel is cooled by passing cooling water into the first hot water conducting jacket and the second hot water conducting jacket, and the barrel is heated by the first heating device on the outer wall of the first hot water conducting jacket and the second heating device on the outer wall of the second hot water conducting jacket. During the preheating process before the equipment is operated, the first solenoid valve on the first cooling water inlet pipe and the second solenoid valve on the second cooling water inlet pipe are in a closed state, and the cooling The incoming water will not enter the first hot water jacket and the second hot water jacket, and the first cooling water return branch is provided with a first check valve, and the second cooling water return branch is provided with a second check valve. The first check valve and the second check valve will discharge the slowly heated and expanded water in the first hot water jacket and the second hot water jacket through the first check valve and the second check valve, and the return water pressure will not enter the first hot water jacket and the second hot water jacket through the first check valve and the second check valve. The temperature can be safely preheated to above 100°C to solve the equipment damage caused by the closure of the water jacket during the preheating of the extruder in the prior art. In addition, the first cooling water inlet pipeline for feeding water into the first hot water jacket and the second cooling water inlet pipeline for feeding water into the second hot water jacket are separately arranged to ensure the smooth water inflow of the two pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram showing a cooling and temperature control system for an environmentally friendly stone paper extruder provided by a specific embodiment of the present application;

[0028] Figure 2 A schematic diagram showing a cooling and temperature control system for an environmentally friendly stone paper extruder provided in another specific embodiment of the present application.

[0029] in:

[0030] 10. First heat-conducting water jacket; 20. Second heat-conducting water jacket; 30. Heat exchange system; 31. Cooling water inlet; 32. First cooling water outlet; 33. Second cooling water outlet; 34. First heat exchange device; 35. Water purification device; 351. Filter structure; 352. Pre-filter space; 353. Post-filter space; 36. Second heat exchange device; 40. First cooling water inlet pipeline; 41. First solenoid valve; 42. First filter; 43. First manual switch valve; 50. Second cooling water inlet pipeline; 51. Second solenoid valve; 52. Second filter; 53. Second manual switch valve; 60. First cooling water return branch pipe; 61. First check valve; 70. Second cooling water return branch pipe; 71. Second check valve; 80. Cooling water return main pipe; 91. Filtered water output main pipe; 92. Filtered water output branch pipe; 93. First connecting pipe; 94. Second connecting pipe. DETAILED DESCRIPTION

[0031] The specific implementation of the utility model is further described in detail below in conjunction with the drawings and embodiments.

[0032] The utility model provides an environmentally friendly stone paper extruder cooling and temperature control system, such as Figure 1 and Figure 2 As shown, the cooling and temperature control system of the environmentally friendly stone paper extruder includes a first hot water jacket 10, a second hot water jacket 20, a heat exchange system 30, a first cooling water inlet pipeline 40, a second cooling water inlet pipeline 50, a first cooling water return branch pipe 60, a second cooling water return branch pipe 70 and a cooling water return main pipe 80. Among them, the first hot water jacket 10 is sleeved on the barrel of the extruder, the first hot water jacket 10 is provided with a first cooling water flow channel, and the outer wall of the first hot water jacket 10 is provided with a first heating device. The second hot water jacket 20 is sleeved on the barrel, the second hot water jacket 20 is provided with a second cooling water flow channel, and the outer wall of the second hot water jacket 20 is provided with a second heating device. The heat exchange system 30 includes a cooling water inlet 31, a first cooling water outlet 32 ​​and a second cooling water outlet 33. One end of the first cooling water inlet pipe 40 is connected to the inlet of the first cooling water flow channel, the other end of the first cooling water inlet pipe 40 is connected to the first cooling water outlet 32, and a first solenoid valve 41 is provided on the first cooling water inlet pipe 40. One end of the second cooling water inlet pipe 50 is connected to the inlet of the second cooling water flow channel, the other end of the second cooling water inlet pipe 50 is connected to the second cooling water outlet 33, and a second solenoid valve 51 is provided on the second cooling water inlet pipe 50. One end of the first cooling water return branch pipe 60 is connected to the outlet of the first cooling water flow channel, and a first check valve 61 is provided on the first cooling water return branch pipe 60 to prevent cooling water from flowing into the first cooling water return branch pipe 60. One end of the second cooling water return branch pipe 70 is connected to the outlet of the second cooling water flow channel, and a second check valve 71 is provided on the second cooling water return branch pipe 70 to prevent cooling water from flowing into the second cooling water return branch pipe 70. The other end of the first cooling water return branch pipe 60 and the other end of the second cooling water return branch pipe 70 are connected to the cooling water return main pipe 80, and the cooling water return main pipe 80 is connected to the cooling water inlet 31. The heat exchange system 30 is used to cool the water flowing back from the cooling water inlet 31 and output it through the first cooling water outlet 32 ​​and the second cooling water outlet 33.

[0033] In the cooling and temperature control system of the environmentally friendly stone paper extruder provided in this embodiment, the first hot water jacket 10 and the second hot water jacket 20 are sleeved on the barrel, and the barrel is cooled by passing cooling water into the first hot water jacket 10 and the second hot water jacket 20, and the barrel is heated by the first heating device on the outer wall of the first hot water jacket 10 and the second heating device on the outer wall of the second hot water jacket 20. During the preheating process before the equipment is operated, the first solenoid valve 41 on the first cooling water inlet pipe and the second solenoid valve 51 on the second cooling water inlet pipe are in a closed state, and the cooling water will not enter the first hot water jacket 10 and the second hot water jacket 20. In the water jacket 20, a first check valve 61 is provided on the first cooling water return branch 60, and a second check valve 71 is provided on the second cooling water return branch 70. The first check valve 61 and the second check valve 71 will discharge the water that slowly heats up and expands in the first hot water jacket 10 and the second hot water jacket 20 through the first check valve 61 and the second check valve 71, and the return water pressure will not enter the first hot water jacket 10 and the second hot water jacket 20 through the first check valve 61 and the second check valve 71, and the temperature can be safely preheated to above 100°C to solve the equipment damage caused by the closure of the water jacket during the preheating of the extruder in the prior art. In addition, the first cooling water inlet pipeline 40 for supplying water to the first hot water jacket 10 and the second cooling water inlet pipeline 50 for supplying water to the second hot water jacket 20 are separately arranged to ensure the smooth water supply of the two pipelines.

[0034] In one embodiment, the first cooling water inlet pipeline 40 is provided with a first filter 42 for filtering and purifying the cooling water in the first cooling water inlet pipeline 40. The second cooling water inlet pipeline 50 is provided with a second filter 52 for filtering and purifying the cooling water in the second cooling water inlet pipeline 50.

[0035] In one embodiment, the first cooling water inlet pipeline 40 is provided with a first manual switch valve 43 for manually opening and closing the first cooling water inlet pipeline 40. The second cooling water inlet pipeline 50 is provided with a second manual switch valve 53 for manually opening and closing the second cooling water inlet pipeline 50.

[0036] In one embodiment, if Figure 2 As shown, the heat exchange system 30 includes a first heat exchange device 34, which is used to exchange heat between the water flowing back from the cooling water inlet 31 and the cooling water flowing out of the cooling tower. The first heat exchange device 34 can cool the water after heat exchange in the first water exchange water jacket and the second water exchange water jacket.

[0037] In one embodiment, the heat exchange system 30 also includes a water purification device 35, in which a filtering structure 351 is arranged. The filtering structure 351 divides the inner cavity of the water purification device 35 into a pre-filtration space 352 and a post-filtration space 353. The water flowing back from the cooling water inlet 31 flows into the pre-filtration space 352 after heat exchange through the first heat exchange device 34. The first cooling water outlet 32 ​​and the second cooling water outlet 33 are both connected to the post-filtration space 353. The cooling water can be filtered through the water purification device 35 to avoid scaling of the water at high temperature.

[0038] In one embodiment, the post-filtration space 353 is connected to a filtered water output main pipe 91, and the filtered water output main pipe 91 is connected to two filtered water output branch pipes 92, and the two filtered water output branch pipes 92 are respectively connected to the first cooling water outlet 32 ​​and the second cooling water outlet 33.

[0039] In one embodiment, the cooling and temperature control system of the environmentally friendly stone paper extruder also includes a second heat exchange device 36, which is used to exchange heat between the water in the post-filtration space 353 and the cooling water flowing out of the cooling tower, thereby further cooling the water purified by the water purification device 35.

[0040] In one embodiment, the second heat exchange device 36 is connected to the filtered water output main pipe 91 via a first connecting pipe 93, and the connection position is located on the upstream side of each of the filtered water output branch pipes 92. The second heat exchange device 36 is connected to the lower part of the post-filtration space 353 via a second connecting pipe 94.

[0041] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be limited by the claims.

Claims

1. An environmentally friendly stone paper extruder cooling and temperature control system, characterized in that: The cooling and temperature control system of the environmentally friendly stone paper extruder includes: A first heat-conducting water jacket is sleeved on the barrel of the extruder, a first cooling water channel is arranged in the first heat-conducting water jacket, and a first heating device is arranged on the outer wall of the first heat-conducting water jacket; A second heat-conducting water jacket is sleeved on the barrel, a second cooling water channel is arranged in the second heat-conducting water jacket, and a second heating device is arranged on the outer wall of the second heat-conducting water jacket; The heat exchange system comprises a cooling water inlet, a first cooling water outlet and a second cooling water outlet; a first cooling water inlet pipeline, one end of which is connected to the inlet of the first cooling water channel, the other end of which is connected to the first cooling water outlet, and a first solenoid valve is provided on the first cooling water inlet pipeline; a second cooling water inlet pipeline, one end of the second cooling water inlet pipeline being connected to the inlet of the second cooling water flow channel, the other end of the second cooling water inlet pipeline being connected to the second cooling water outlet, and a second solenoid valve being arranged on the second cooling water inlet pipeline; a first cooling water return branch pipe, one end of which is connected to the outlet of the first cooling water flow channel, and a first check valve is provided on the first cooling water return branch pipe to prevent cooling water from flowing into the first cooling water return branch pipe; a second cooling water return branch pipe, one end of which is connected to the outlet of the second cooling water flow channel, and a second check valve is provided on the second cooling water return branch pipe to prevent cooling water from flowing into the second cooling water return branch pipe; A cooling water return main pipe, the other end of the first cooling water return branch pipe and the other end of the second cooling water return branch pipe are both connected to the cooling water return main pipe, and the cooling water return main pipe is connected to the cooling water inlet; The heat exchange system is used to cool the water flowing back from the cooling water inlet and output it through the first cooling water outlet and the second cooling water outlet.

2. The environmentally friendly stone paper extruder cooling and temperature control system according to claim 1 is characterized in that: A first filter is provided on the first cooling water inlet pipeline; and / or, The second cooling water inlet pipeline is provided with a second filter.

3. The environmentally friendly stone paper extruder cooling and temperature control system according to claim 1 is characterized in that: A first manual switch valve is provided on the first cooling water inlet pipeline; and / or, The second cooling water inlet pipeline is provided with a second manual switch valve.

4. The cooling and temperature control system for an environmentally friendly stone paper extruder according to any one of claims 1 to 3, characterized in that: The heat exchange system comprises a first heat exchange device, which is used to exchange heat between water flowing back from the cooling water inlet and cooling water flowing out of a cooling tower.

5. The environmentally friendly stone paper extruder cooling and temperature control system according to claim 4 is characterized in that: The heat exchange system also includes a water purification device, which is provided with a filtering structure. The filtering structure divides the inner cavity of the water purification device into a pre-filtration space and a post-filtration space. The water flowing back from the cooling water inlet flows into the pre-filtration space after heat exchange by the first heat exchange device, and the first cooling water outlet and the second cooling water outlet are both connected to the post-filtration space.

6. The environmentally friendly stone paper extruder cooling and temperature control system according to claim 5 is characterized in that: The post-filtration space is connected to a filtered water output main pipe, the filtered water output main pipe is connected to two filtered water output branch pipes, and the two filtered water output branch pipes are respectively connected to the first cooling water outlet and the second cooling water outlet.

7. The environmentally friendly stone paper extruder cooling and temperature control system according to claim 6, characterized in that: The cooling and temperature control system of the environmentally friendly stone paper extruder also includes a second heat exchange device, which is used to exchange heat between the water in the post-filtration space and the cooling water flowing out of the cooling tower.

8. The environmentally friendly stone paper extruder cooling and temperature control system according to claim 7, characterized in that: The second heat exchange device is connected to the filtered water output main pipe via a first connecting pipe, and the connection position is located at the upstream side of each filtered water output branch pipe. The second heat exchange device is connected to the lower part of the post-filtration space via a second connecting pipe.

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