Drying equipment for chemical production

Abstract

The utility model discloses drying equipment for chemical production, and belongs to the technical field of magnesium sulfate production, the drying equipment for chemical production comprises a heating tank, the heating tank comprises an outer cavity and an inner cavity, and the inner cavity is fixed in the outer cavity; the inner cavity is provided with an air cylinder, the air cylinder is connected with a discharging switch, a discharging opening is further formed in the lower portion of the inner cavity, the discharging switch is used for closing the discharging opening, and the air cylinder is used for driving the discharging switch to be opened for discharging; the problem of dehydration of the magnesium sulfate solution is solved, meanwhile, steam energy generated in the heating process of equipment can be fully utilized, and the energy utilization efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to a drying device for chemical production and belongs to the technical field of magnesium sulfate production. BACKGROUND

[0002] The reason for dehydrating magnesium sulfate solution in industrial production is mainly to obtain different hydrates of magnesium sulfate. For example, a dehydration device for magnesium sulfate production is authorized on August 9, 2022, with the announcement number CN217139279U. The device comprises a box body and supporting legs, the supporting legs are fixedly arranged on the box body, and a feeding port is formed in the box body. A dehydration tank is fixedly arranged in the box body, an electric heating plate is fixedly arranged on the dehydration tank, and the dehydration tank is provided with a discharge port. A stirring mechanism is fixedly arranged in the dehydration tank. An opening and closing mechanism is fixedly arranged outside the dehydration tank, and the power output end is matched with the discharge port of the dehydration tank. The control end of the opening and closing mechanism extends to the outside of the box body. A cleaning mechanism is installed in the box body, and the power output end is slidably connected with the inner wall of the dehydration tank. The power output end of the cleaning mechanism can reciprocate on the inner wall of the dehydration tank.

[0003] The above-mentioned patent directly leads the steam in the device to the outside of the device during the production process, so that the steam energy is not fully utilized. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art, provide a drying device for chemical production, solve the problem of dehydration of magnesium sulfate solution, and fully utilize the steam energy generated during the heating process of the device, thereby improving the energy utilization efficiency.

[0005] The technical solution adopted by the application to solve the existing problems is:

[0006] A drying device for chemical production, comprising a heating tank, the heating tank comprising an outer cavity and an inner cavity, the inner cavity being fixed inside the outer cavity;

[0007] A cylinder is installed on the inner cavity, the cylinder is connected with a discharge switch, and a discharge port is further arranged below the inner cavity. The discharge switch is used to close the discharge port, and the cylinder is used to drive the discharge switch to open and unload.

[0008] Preferably, the cylinder comprises a cylinder push rod and a return spring, the return spring is sleeved on the cylinder push rod, and the cylinder push rod is slidably connected with the inner wall of the cylinder;

[0009] An extension rod is fixed on the discharge switch, the other end of the extension rod is connected with the cylinder push rod, and the extension rod is rotatably connected with the cylinder push rod;

[0010] A sliding groove is arranged on the discharge switch, and a sliding rail is further arranged on the inner cavity. The discharge switch is slidably connected with the inner cavity.

[0011] Preferably, a discharge chute is fixed on the outer cavity and located below the discharge switch, and a crossbar is fixed on the discharge chute and rotationally connected with the protruding rod on the discharge switch.

[0012] Preferably, a heater is fixed on the outer circumference of the inner cavity to heat the solution inside the inner cavity.

[0013] Preferably, a bottom plate is fixed on the lower part of the inner cavity, and a stirrer is rotationally connected with the bottom plate to stir the solution inside the inner cavity.

[0014] Preferably, a pressure relief valve is further installed on the inner cavity to limit the maximum pressure in the heating tank and to discharge the remaining steam of the whole device.

[0015] Preferably, the pressure relief valve is connected with a steam inlet switch, and the steam inlet switch adopts a pneumatic butterfly valve switch; the steam inlet switch is connected with an amplifier, and the amplifier is used to amplify the steam pressure.

[0016] Preferably, the top of the inner cavity is provided with a feeding port, and the feeding port adopts a pneumatic butterfly valve switch.

[0017] Compared with the prior art, the application has the beneficial effects:

[0018] The application uses the hot steam generated by the device in the heating process to open and close the discharge switch of the device, which not only improves the energy utilization efficiency, but also improves the automation degree of the device, saves the production cost, and eliminates the need for manual operation. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural diagram of the drying device for chemical production.

[0020] Figure 2 It is a partial sectional front view of the drying device for chemical production.

[0021] Figure 3 It is a partial sectional side view of the drying device for chemical production.

[0022] Figure 4 It is a partial enlarged view of A in the partial sectional side view of the drying device for chemical production.

[0023] In the drawings:

[0024] 1, outer cavity, 2, inner cavity, 3, inlet, 4, steam pipe, 5, pressure relief valve, 6, steam inlet switch, 7, amplifier, 8, cylinder, 81, cylinder push rod, 82, return spring, 9, discharge chute, 10, crossbar, 11, discharge switch, 12, extension rod, 13, slide rail, 14, foot, 15, stirrer, 151, bottom layer stirring paddle, 1511, scraper, 152, middle layer stirring paddle, 153, upper layer stirring paddle, 16, discharge port, 17, heater, 18, bottom plate, 19, servo motor. DETAILED DESCRIPTION

[0025] As used in the specification and claims, certain terminology is used to describe parts that will be apparent to those skilled in the art. It is not intended that the application be limited to the described parts, but rather that the terminology be understood to encompass any parts that can take the place of the parts specifically described. As used in the specification and claims, the singular forms "a," "an" and "the" include plural referents unless the context clearly dictates otherwise. "Approximately" refers to ±10% of the indicated value.

[0026] In the description of the present application, it needs to be understood that the terms "upper", "lower", "front", "back", "left", "right", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In the present application, unless otherwise expressly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] As Figures 1-4 A drying equipment for chemical production is shown, which is used for dehydrating magnesium sulfate solution to obtain different hydrates of magnesium sulfate.

[0029] As Figure 1As shown, the drying equipment for chemical production comprises a heating tank, which comprises an outer cavity 1 and an inner cavity 2 fixed inside the outer cavity 1, wherein the outer cavity 1 is a heat insulation layer and the inner cavity 2 is a heating layer.

[0030] The top of the inner cavity 2 is provided with an inlet 3 opened and closed by a pneumatic butterfly valve.

[0031] In combination with Figure 3 and Figure 4 , the cylinder 8 comprises a cylinder push rod 81 and a reset spring 82 sleeved on the cylinder push rod 81, and the cylinder push rod 81 is in sliding connection with the inner wall of the cylinder 8.

[0032] In combination with Figure 1 and Figure 2 , the lower part of the inner cavity 2 is provided with a discharge port 16, and a discharge switch 11 is installed at the discharge port 16 to open and close the discharge port 16.

[0033] The outer cavity 1 is fixed with a discharge chute 9 below the discharge switch 11, and the discharge chute 9 is fixed with a cross rod 10 in rotational connection with the extension rod 12 on the discharge switch 11.

[0034] The outer circumference of the inner cavity 2 is fixed with a heater 17 for heating the solution inside the inner cavity 2.

[0035] The lower part of the inner cavity 2 is fixed with a bottom plate 18 designed in a conical shape to reduce the residue of the material.

[0036] The bottom plate 18 is in rotational connection with a stirrer 15 for stirring the solution inside the inner cavity 2, and the stirrer 15 comprises a bottom layer stirring paddle 151, a middle layer stirring paddle 152 and an upper layer stirring paddle 153, which are distributed in a staggered manner, and the length of the middle layer stirring paddle 152 is shorter than that of the bottom layer stirring paddle 151 and the upper layer stirring paddle 153, so that the solution in the inner cavity 2 can be fully stirred to improve the stirring efficiency.

[0037] The pressure relief valve 5 is used to limit the maximum pressure in the heating tank and to discharge the remaining steam of the whole device.

[0038] The steam inlet switch 6 is a pneumatic butterfly valve switch; the steam inlet switch 6 is connected with an amplifier 7, which is used to amplify the steam pressure.

[0039] The servo motor 19 is used to drive the stirrer 15 to rotate.

[0040] When the magnesium sulfate inside the device is heated to a certain degree and needs to be discharged, at this time, the steam inlet switch 6 is opened, the high-pressure steam in the heating tank enters the cylinder 8 through the amplifier 7 after amplification, and drives the cylinder push rod 81 to move downward, the cylinder push rod 81 presses the extension rod 12 on the discharge switch 11 downward, the extension rod 12 drives the discharge switch 11 to slide upward, thereby opening the discharge port 16, starting to unload, and the material is discharged through the discharge chute 9, and the scraper 1511 continuously rotates to push the material to the discharge port during the discharging process. When the discharging is finished, the residual steam is discharged by the pressure relief valve 5, and the cylinder push rod 81 is reset under the action of the reset spring 82, and drives the discharge switch 11 to close.

[0041] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the present application.

Claims

1. A drying device for chemical production, characterized in that: it comprises a heating tank, which comprises an outer cavity (1) and an inner cavity (2) fixed inside the outer cavity (1); a gas cylinder (8) is installed on the inner cavity (2), the gas cylinder (8) is connected with a discharge switch (11), and a discharge port (16) is further arranged below the inner cavity (2), the discharge switch (11) is used to close the discharge port (16), and the gas cylinder (8) is used to drive the discharge switch (11) to open to unload; the gas cylinder (8) comprises a gas cylinder push rod (81) and a reset spring (82), the reset spring (82) is sleeved on the gas cylinder push rod (81), and the gas cylinder push rod (81) is in sliding connection with the inner wall of the gas cylinder (8); an extension rod (12) is fixed on the discharge switch (11), one end of the extension rod (12) is connected with the gas cylinder push rod (81), and the extension rod (12) is in rotary connection with the gas cylinder push rod (81); a sliding groove is arranged on the discharge switch (11), and a sliding rail (13) is further arranged on the inner cavity (2), and the discharge switch (11) is in sliding connection with the inner cavity (2); a pressure relief valve (5) is further installed on the inner cavity (2) and used to limit the maximum pressure in the heating tank and to discharge the remaining steam in the whole device; the pressure relief valve (5) is connected with a steam inlet switch (6), the steam inlet switch (6) is a pneumatic butterfly valve switch; the steam inlet switch (6) is connected with an amplifier (7), and the amplifier (7) is used to amplify the steam pressure.

2. The drying device for chemical production according to claim 1, characterized in that: a discharge chute (9) is fixed on the outer cavity (1) and located below the discharge switch (11), and a cross rod (10) is fixed on the discharge chute (9) and in rotary connection with the extension rod (12) on the discharge switch (11).

3. The drying device for chemical production according to claim 1, characterized in that: a heater (17) is fixed on the outer circumference of the inner cavity (2) and used to heat the solution in the inner cavity (2).

4. The drying device for chemical production according to claim 1, characterized in that: a bottom plate (18) is fixed on the lower part of the inner cavity (2), and a stirrer (15) is in rotary connection with the bottom plate (18) and used to stir the solution in the inner cavity (2).

5. The drying device for chemical production according to claim 1, characterized in that: a feeding port (3) is arranged on the top of the inner cavity (2), and the feeding port (3) is a pneumatic butterfly valve switch. ​ ​ ​ ​ ​ ​ ​ ​ ​

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