Rapid cooling assembly for dispersion machine

Abstract

The utility model relates to a quick cooling component for a dispersion machine, which comprises a first cooling unit, the first cooling unit comprises a cooler arranged in a dispersion cavity, the cooler structurally comprises a closed cooling shell, a plurality of mutually independent cooling cavities are arranged in the cooling shell, and the cooling cavities are arranged in the cooling shell. The part, between every two adjacent cooling cavities, of the cooling shell is hollowed out, so that a slurry channel is formed, and every two adjacent cooling cavities communicate with each other through a connecting short pipe; slurry in the dispersion cavity flows through the slurry channel, and cooling liquid is introduced into the cooling cavity, so that the temperature of the slurry in the dispersion cavity is adjusted. By arranging the first cooling unit, the slurry in the dispersion cavity can be quickly and uniformly cooled, the cooling effect is good, the heat dissipation efficiency is high, the slurry is prevented from being overheated, and the quality of the slurry is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling devices, in particular to a rapid cooling component for a disperser. Background Art

[0002] The disperser is used to stir and disperse low-viscosity slurry. Its structure includes a dispersion chamber, a stator, a rotor, and a dispersion shaft. The dispersion shaft drives the rotor to rotate relative to the stator, thereby shearing and dispersing the slurry in the dispersion chamber layer by layer. In order to improve the quality of pulping, it is usually necessary to equip the disperser with a cooling device to cool the slurry in the dispersion chamber.

[0003] In the prior art, a jacket is usually arranged on the periphery of the dispersion chamber, and cooling liquid is passed through the jacket to remove the heat inside the dispersion chamber, thereby cooling the slurry. However, the cooling area of ​​the jacket is limited, and the cooling effect on the slurry in the center of the dispersion chamber is poor, and the heat dissipation efficiency is low, which cannot meet the rapid cooling requirements of high-speed dispersers. Utility Model Content

[0004] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a rapid cooling component for a disperser. By setting a first cooling unit, the slurry inside the dispersion chamber can be quickly and evenly cooled, with good cooling effect and high heat dissipation efficiency, thereby preventing the slurry from overheating and improving the slurry quality.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A rapid cooling assembly for a disperser, comprising a first cooling unit, the first cooling unit comprising a cooler installed inside a dispersion chamber, the cooler having a structure comprising: a closed cooling shell, a plurality of mutually independent cooling chambers are arranged inside the cooling shell, the cooling shell between two adjacent cooling chambers is hollowed out to form a slurry channel, and the two adjacent cooling chambers are connected by a connecting short pipe;

[0007] The slurry in the dispersion chamber flows through the slurry channel, and a cooling liquid is introduced into the cooling chamber, thereby adjusting the temperature of the slurry in the dispersion chamber.

[0008] As a further improvement of the above technical solution:

[0009] Several spoilers are arranged inside each cooling cavity.

[0010] In a single cooling cavity, multiple spoilers are arranged in a staggered manner.

[0011] A plurality of protrusions are arranged on the outer wall surface of each cooling cavity, and the slurry in the corresponding slurry channel is stirred by the protrusions.

[0012] The side wall surfaces of the cooling shell are respectively provided with a first inlet and a first outlet.

[0013] The invention also comprises a second cooling unit, which comprises a plurality of stator discs. The interior of the stator discs is provided with cooling water channels for introducing cooling liquid, so as to adjust the slurry temperature inside the dispersion chamber.

[0014] The stator disc is installed inside the dispersion chamber and arranged above, below, or above and below the cooler.

[0015] The structure of a single stator disc is as follows: it comprises a disc body, on which a plurality of stator slots for the slurry to pass are arranged, and a cooling water channel is arranged inside the disc body.

[0016] For a single stator disk, the cooling water channels are arranged in a curved shape around the stator slots.

[0017] For a single stator disk, the disk body is respectively provided with a second inlet and a second outlet.

[0018] The beneficial effects of the utility model are as follows:

[0019] The utility model has a compact and reasonable structure and is easy to operate. By arranging the first cooling unit and the second cooling unit, the heat exchange area of ​​the cooling component can be greatly increased, and the slurry inside the dispersion chamber can be quickly and evenly cooled. The cooling effect is good and the heat dissipation efficiency is high, thereby preventing the slurry from overheating and improving the slurry quality.

[0020] The utility model also has the following advantages:

[0021] (1) The utility model opens a cooling water channel in the stator disk and introduces a coolant into the cooling water channel, so that the stator disk can cool the slurry inside the dispersion chamber 5.

[0022] (2) The present invention adopts a form in which the cooling water channel is arranged in a curved shape around the stator slot, which can greatly increase the cooling area of ​​the stator disk without affecting the shearing capacity of the stator disk, thereby improving its cooling effect.

[0023] (3) The utility model can disturb the coolant inside the cooling cavity by providing a spoiler, thereby improving the heat exchange efficiency.

[0024] (4) The utility model can extend the travel of the coolant in the corresponding cooling cavity and increase the residence time of the coolant in the corresponding cooling cavity by staggered arrangement of multiple spoilers, thereby further improving the heat exchange efficiency.

[0025] (5) The utility model can stir the slurry in the corresponding slurry channel by providing a protrusion, thereby improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The structure of the cooler in the utility model is shown in FIG. Figure 1 .

[0027] Figure 2 for Figure 1 main view.

[0028] Figure 3 for Figure 2 Cross-sectional view of section AA.

[0029] Figure 4 for Figure 2 Cross-sectional view of section BB.

[0030] Figure 5 for Figure 1 Top view of the .

[0031] Figure 6 for Figure 5 Cross-sectional view of section CC.

[0032] Figure 7 for Figure 5 Cross-sectional view of section DD.

[0033] Figure 8 for Figure 5 Cross-sectional view of section EE.

[0034] Fig. 9 The structure of the cooler in the utility model is shown in FIG. Figure 2 .

[0035] Fig.10 It is a structural schematic diagram of the stator disc in the utility model.

[0036] Fig.11 It is a full cross-sectional view of the stator disc in the utility model.

[0037] Fig.12 for Fig.10 Bottom view of .

[0038] Fig.13 It is a schematic diagram of the utility model in working state.

[0039] Among them: 1. Cooler; 2. Stator disk; 3. Rotor disk; 4. Main shaft; 5. Dispersion chamber; 6. Impeller;

[0040] 101, cooling shell; 102, cooling cavity; 103, connecting short pipe; 104, slurry channel; 105, bump; 106, spoiler; 107, first inlet; 108, first outlet;

[0041] 201, disk body; 202, cooling water channel; 203, stator slot; 204, mounting hole; 205, second inlet; 206, second outlet. DETAILED DESCRIPTION

[0042] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0043] The structure and functions of the utility model are as follows:

[0044] like Figure 1-Figure 13 As shown, a rapid cooling component for a disperser includes a first cooling unit, the first cooling unit includes a cooler 1 installed inside a dispersion chamber 5, and the structure of the cooler 1 is as follows: it includes a closed cooling shell 101, and a plurality of independent cooling chambers 102 are arranged inside the cooling shell 101, and the cooling shell 101 between two adjacent cooling chambers 102 is hollowed out to form a slurry channel 104, and the two adjacent cooling chambers 102 are connected by a connecting short pipe 103; the slurry inside the dispersion chamber 5 flows through the slurry channel 104, and a coolant is introduced into the cooling chamber 102, so as to adjust the temperature of the slurry inside the dispersion chamber 5. The cooling component of the utility model is suitable for a disperser, and is installed inside the dispersion chamber 5, and can quickly and evenly cool the slurry inside the dispersion chamber 5, and has a good cooling effect and high heat dissipation efficiency, thereby preventing the slurry from overheating and improving the slurry quality.

[0045] The cooling assembly of the utility model comprises a first cooling unit and a second cooling unit; wherein the first cooling unit comprises at least one cooler 1, and the cooler 1 is arranged in a dispersion chamber 5;

[0046] like Figure 1-Figure 9 As shown, for a single cooler 1, the cooling shell 101 is cylindrical as a whole and is made of a metal material with good heat transfer performance. Inside the dispersion cavity 5, the cooler 1 is arranged concentrically with the main shaft 4;

[0047] The cooling cavity 102 is used to pass cooling liquid, and each cooling cavity 102 is provided with a plurality of spoilers 106. The spoilers 106 can turbulent the cooling liquid, thereby improving the heat exchange efficiency.

[0048] In a single cooling cavity 102, multiple spoilers 106 are arranged in a staggered manner; the spoilers 106 are arranged at intervals in the upper and lower directions along the axial direction of the main shaft 4, which can extend the travel of the coolant in the corresponding cooling cavity 102 and increase the residence time of the coolant in the corresponding cooling cavity 102, thereby further improving the heat exchange efficiency.

[0049] The connecting short pipe 103 is used to connect the multiple cooling cavities 102 so that the coolant can flow between the multiple cooling cavities 102;

[0050] The slurry channel 104 is used to allow the slurry inside the dispersion chamber 5 to pass through. A plurality of protrusions 105 are provided on the outer wall surface of each cooling cavity 102, and the protrusions 105 are used to stir the slurry in the corresponding slurry channel 104. The protrusions 105 protrude toward the slurry channel 104, and can disturb the slurry inside the dispersion chamber 5, thereby improving the heat exchange efficiency.

[0051] The side wall surface of the cooling housing 101 is provided with a first inlet 107 and a first outlet 108. The first inlet 107 is connected to one of the cooling cavities 102, and the first outlet 108 is connected to the other cooling cavity 102. In addition, along the axial direction of the main shaft 4, the first inlet 107 is arranged below the first outlet 108, and the coolant flows from bottom to top.

[0052] like Fig.13 As shown, a second cooling unit is also included, and the second cooling unit includes a plurality of stator disks 2, and a cooling water channel 202 for passing a coolant is provided inside the stator disk 2, so as to adjust the temperature of the slurry inside the dispersion chamber 5. By opening the cooling water channel 202 in the stator disk 2 and passing the coolant into the cooling water channel 202, the stator disk 2 can cool the slurry inside the dispersion chamber 5;

[0053] A single stator disc 2 and the cooler 1 may be connected in series or in parallel;

[0054] The multiple stator discs 2 and the multiple coolers 1 can be connected in series or in parallel.

[0055] The stator disc 2 is installed inside the dispersion chamber 5 and arranged above, below, or above and below the cooler 1; multiple stator discs 2 are stacked and arranged along the axial direction of the main shaft 4 inside the dispersion chamber 5, and all the stator discs 2 can be arranged above the dispersion chamber 5, or all the stator discs 2 can be arranged below the dispersion chamber 5, or a part of the stator discs 2 can be arranged above the dispersion chamber 5 and another part of the stator discs 2 can be arranged above the dispersion chamber 5;

[0056] The stator disc 2 adjacent to the cooler 1 is arranged in close contact with the cooler 1 and is fixed to the cooler 1 by bolts.

[0057] like Figure 10-12 As shown, the structure of a single stator disc 2 is as follows: it includes a disc body 201, on which a plurality of stator slots 203 for slurry to pass are provided, and a cooling water channel 202 is provided inside the disc body 201. In addition, a mounting hole 204 for avoiding the main shaft 4 is provided at the center of the disc body 201.

[0058] For a single stator disk 2, the cooling water channel 202 is arranged in a curved shape around the stator slot 203. This arrangement can greatly increase the cooling area of ​​the stator disk 2 without affecting the shearing capacity of the stator disk 2, thereby improving its cooling effect.

[0059] For a single stator disk 2, a second inlet 205 and a second outlet 206 are respectively provided on the disk body 201. The second inlet 205 and the second outlet 206 are used for the coolant to enter and exit the corresponding cooling water channel 202. The second inlet is provided on the side wall surface of the disk body 201, and the second outlet 206 is provided on the top wall surface of the second disk body 201, and the two are arranged staggered.

[0060] The cooling assembly of the utility model is suitable for a disperser, and the structure of the disperser includes a dispersion chamber 5, a main shaft 4, a rotor disk 3, and an impeller 6; wherein,

[0061] The main shaft 4 is connected to the output end of the external driving device, the rotor disk 3 and the stator disk 2 are arranged in pairs, the rotor disk 3 and the impeller 6 are fixed on the outer circumferential surface of the main shaft 4 and rotate with the main shaft 4, and the stator disk 2 avoids the main shaft 4 through the corresponding mounting hole 204 and does not rotate with the main shaft 4;

[0062] The external driving device drives the main shaft 4 to rotate, thereby driving the rotor disk 3 and the impeller 6 to rotate. When the rotor disk 3 rotates relative to the stator disk 2, the slurry in the dispersion chamber 5 is sheared and dispersed, and the impeller 6 drives the slurry inside the dispersion chamber 5 to flow, thereby improving the dispersion performance of the disperser;

[0063] In addition, the side wall surface of the dispersion chamber 5 is respectively provided with a coolant inlet for introducing coolant, a coolant inlet, a coolant outlet for the coolant to flow out, several feed inlets for feeding raw materials for preparing slurry, and a discharge port for discharging slurry.

[0064] The working process of the utility model is as follows:

[0065] like Fig.13 As shown, Fig.13 The direction indicated by the arrow in the figure is the flow direction of the coolant in the cooling assembly;

[0066] The second inlet 205 of the stator disk 2 at the bottom layer is correspondingly connected to the coolant inlet of the dispersion chamber 5, and the second outlet 206 of the stator disk 2 at the top layer is correspondingly connected to the coolant outlet of the dispersion chamber 5;

[0067] The coolant enters the cooling water channel 202 of the stator disc 2 at the bottom layer from the coolant inlet of the dispersion chamber 5 and the second inlet 205 of the stator disc 2 at the bottom layer;

[0068] Subsequently, the liquid enters the cooling water channel 202 of the stator disk 2 through the second outlet 206 of the bottom stator disk 2 and the second inlet 205 of the upper stator disk 2, and then enters the cooling cavity 102 corresponding to the cooler 1 through the second outlet 206 and the first inlet 107 of the stator disk 2.

[0069] The coolant flows through each cooling cavity 102 of the cooler 1 through the connecting short pipe 103, enters the stator disc 2 located above the cooler 1 from the first outlet 8, and flows out to the outside of the disperser through the second outlet of the stator disc 2 at the top layer and the coolant outlet of the dispersion cavity 5;

[0070] The slurry inside the dispersion chamber 5 is cooled by circulating the coolant in the cooling assembly; in addition, in order to improve the heat exchange efficiency, the flow direction of the coolant in the dispersion chamber 5 is opposite to the flow direction of the slurry.

[0071] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. A rapid cooling assembly for a disperser, characterized in that: The invention comprises a first cooling unit, wherein the first cooling unit comprises a cooler (1) installed inside a dispersion chamber (5), wherein the structure of the cooler (1) is as follows: comprising a closed cooling shell (101), wherein a plurality of mutually independent cooling chambers (102) are arranged inside the cooling shell (101), wherein the cooling shell (101) between two adjacent cooling chambers (102) is hollowed out to form a slurry channel (104), and the two adjacent cooling chambers (102) are connected via a connecting short pipe (103); The slurry inside the dispersion chamber (5) flows through the slurry channel (104), and a cooling liquid is introduced into the cooling chamber (102), thereby adjusting the temperature of the slurry inside the dispersion chamber (5).

2. A rapid cooling assembly for a disperser as claimed in claim 1, characterized in that: A plurality of spoilers (106) are arranged inside each cooling cavity (102).

3. A rapid cooling assembly for a disperser as claimed in claim 2, characterized in that: In a single cooling cavity (102), a plurality of spoilers (106) are arranged in a staggered manner.

4. A rapid cooling assembly for a disperser as claimed in claim 3, characterized in that: A plurality of protrusions (105) are provided on the outer wall surface of each cooling cavity (102), and the slurry in the corresponding slurry channel (104) is stirred by the protrusions (105).

5. A rapid cooling assembly for a disperser as claimed in claim 1, characterized in that: A first inlet (107) and a first outlet (108) are respectively provided on the side wall surface of the cooling shell (101).

6. A rapid cooling assembly for a disperser as claimed in claim 1, characterized in that: It also comprises a second cooling unit, which comprises a plurality of stator discs (2), wherein the interior of the stator discs (2) is provided with a cooling water channel (202) for passing a cooling liquid, thereby adjusting the slurry temperature inside the dispersion chamber (5).

7. A rapid cooling assembly for a disperser as claimed in claim 6, characterized in that: The stator disc (2) is installed inside the dispersion chamber (5) and is arranged above, below, or above and below the cooler (1).

8. A rapid cooling assembly for a disperser as claimed in claim 6, characterized in that: The structure of a single stator disc (2) comprises a disc body (201), the disc body (201) is provided with a plurality of stator slots (203) for slurry to pass through, and a cooling water channel (202) is provided inside the disc body (201).

9. A rapid cooling assembly for a disperser as claimed in claim 8, characterized in that: For a single stator disk (2), the cooling water channel (202) is arranged in a curved shape around the stator slot (203).

10. A rapid cooling assembly for a disperser as claimed in claim 8, characterized in that: For a single stator disc (2), the disc body (201) is respectively provided with a second inlet (205) and a second outlet (206).

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