Liquid molten sulfur tank type transport vehicle

Abstract

The utility model discloses a liquid molten sulfur tank type transport vehicle which is provided with a walking mechanism and a sulfur transport tank, an anti-blocking discharging device is arranged on the transport tank, the liquid molten sulfur tank type transport vehicle comprises an upper seat sleeve and a lower sealing seat which are arranged on the top wall and the bottom wall of a tank body, and further comprises an upper sleeve, and the bottom of the upper sleeve is connected with the top of the upper seat sleeve in a sealing mode. A copper wire nut is fixed in an upper sleeve of the upper sleeve, a screw sealing and cleaning mechanism is further fixed in the upper seat sleeve, a screw is screwed in the copper wire nut, the lower portion of the screw sequentially penetrates through the upper sleeve and the screw sealing and cleaning mechanism, a spherical sealing head is fixed at the bottom end of the screw, a rotating handle is mounted at the top end of the screw, and a discharging connector is connected to the bottom of the lower sealing seat. And when the rotary handle is rotated, the spherical sealing head at the bottom of the screw rod can extend downwards to be in sealing fit with the lower sealing seat or retract upwards to be separated from the lower sealing seat. After the anti-blocking discharging device is applied, the anti-blocking discharging device cannot be blocked, and normal discharging operation cannot be affected.

Description

Technical Field

[0001] The utility model relates to a tank transport vehicle, in particular to a liquid molten sulfur tank transport vehicle. Background Art

[0002] Dangerous goods tank trucks are generally used to transport flammable, explosive, and corrosive liquid materials. Liquid molten sulfur is a liquid substance with high temperature properties (between 120℃ and 200℃). During transportation, the internal temperature of the tank must be kept within the range of 130℃ to 150℃ to ensure that its properties remain unchanged. If the temperature is lower than this, it will crystallize and solidify, which cannot meet the use requirements in some fields.

[0003] The prior art liquid molten sulfur tank transport vehicle has a traveling mechanism and a sulfur transport tank mounted on the traveling mechanism. The sulfur transport tank is provided with a loading port at the top and a discharge pipeline at the bottom. The discharge pipeline is provided with a stop valve. When the liquid molten sulfur is discharged, a small amount of sulfur often remains in the discharge pipeline. Since the discharge pipeline is located outside the tank body, a small amount of residual sulfur will soon crystallize and solidify. The stop valve in the discharge pipeline is often blocked and sealed, and it is very difficult to open the valve at the next discharge. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a liquid molten sulfur tank transport vehicle which will not be blocked or sealed.

[0005] In order to solve the above technical problems, the utility model discloses a liquid molten sulfur tank transport vehicle, which has a traveling mechanism and a sulfur transport tank mounted on the traveling mechanism, wherein a charging port is arranged on the top of the sulfur transport tank and a discharge pipeline is arranged on the bottom, and an anti-blocking unloading device which can be connected or disconnected with the discharge pipeline is arranged on the sulfur transport tank, and the anti-blocking unloading device comprises an upper seat sleeve and a lower sealing seat which are sealed on the top wall and the bottom wall of the tank body of the sulfur transport tank; and an upper sleeve is also included, wherein the bottom of the upper sleeve is sealedly connected to the top of the upper seat sleeve through a connecting flange, and a fixed seal is arranged in the upper sleeve of the upper sleeve. A copper nut is fixed, and a screw sealing and cleaning mechanism is also fixed in the upper seat sleeve. A screw is installed in the copper nut, and the bare rod section at the lower part of the screw passes through the upper sleeve and the screw sealing and cleaning mechanism in sequence. A spherical sealing head that can be sealed with the lower sealing seat is fixed at the bottom of the screw. The top of the screw extends to the top of the copper nut and is equipped with a rotating handle. The bottom of the lower sealing seat is connected to a discharge joint, and the discharge pipeline is connected to the discharge joint. By turning the rotating handle, the spherical sealing head at the bottom of the screw can extend downward to seal with the lower sealing seat or retract upward to disengage from the lower sealing seat.

[0006] As an improvement of the present utility model, the screw sealing cleaning mechanism includes a sliding sleeve, a graphite bearing sleeve and a graphite copper sleeve. A sliding sleeve seat with an enlarged diameter is formed at the lower part of the sliding sleeve. A plurality of sealing grooves are formed on the inner wall of the sliding sleeve seat. A heat-resistant asbestos sealing ring A is installed in each sealing groove. The graphite bearing sleeve is screwed on the upper part of the sliding sleeve, the graphite copper sleeve is fixed on the inner wall of the graphite bearing sleeve, the sliding sleeve seat of the sliding sleeve is fixed on the lower inner wall of the upper seat sleeve, and the light rod section at the lower part of the screw passes through the graphite copper sleeve and the sliding sleeve seat.

[0007] As a further improvement of the present invention, a rectangular upper hole is provided at the bottom of the screw, and an annular limiting groove is provided on the light rod section near the upper hole. Correspondingly, a screw step mounting hole is provided on the upper part of the spherical sealing head, and a lower hole matching the upper hole is provided below the screw step mounting hole; the bottom end of the screw extends to the lower hole, and a matching adjustment steel ball is installed in the rectangular hole formed by the upper hole and the lower hole, and a split retaining spring is installed in the limiting groove on the screw, and a pressure cover is screwed into the screw step mounting hole, and the light rod section of the screw is loosely matched with the inner wall of the pressure cover, and a heat-resistant asbestos sealing ring B that seals with the light rod section of the screw is installed on the inner wall of the pressure cover, and the bottom end of the pressure cover can press the upper end face of the split retaining spring, and there is a gap between the split retaining spring and the hole wall of the screw step mounting hole.

[0008] Furthermore, limiting support rods are fixedly arranged between the top wall and the bottom wall of the tank body of the sulfur transport tank, and the axes of the limiting support rods are located on concentric circles outside the axis of the screw.

[0009] In the utility model, by rotating the rotating handle, the spherical sealing head at the bottom of the screw can be extended downward to cooperate with the lower sealing seat or retracted upward to be separated from the lower sealing seat. Since the anti-blocking unloading device in the utility model is completely placed inside the tank body, even if a small amount of sulfur remains at the lower sealing seat after unloading, when the tank is filled with liquid molten sulfur again, the small amount of residual sulfur at the lower sealing seat will be heated to become liquid and will not be blocked and sealed, thereby not affecting the normal discharge operation. In the utility model, the extension and contraction of the spherical sealing head is driven by the rotation of the screw, and the action is reliable. The heat-resistant asbestos sealing ring A installed on the inner wall of the sliding sleeve seat can scrape off the lower part of the screw. The sulfur attached to the bare rod section is prevented from contaminating the threads of the upper section; in the utility model, an adjusting steel ball is arranged between the spherical sealing head and the screw rod to form a joint structure. Affected by the processing error and the shaking of the liquid during transportation, the upper and lower openings of the tank body cannot be guaranteed to be concentric, which will affect the sealing fit between the spherical sealing head and the lower sealing seat. Through the slight adjustment of the joint, effective sealing can be guaranteed; in the utility model, after the limited support rod is fixed between the top wall and the bottom wall of the tank body, slight deformation of the tank body and displacement of the upper and lower surfaces caused by the bumps of the vehicle and the surging of the liquid during the loading and transportation of the tank body can be prevented, thereby further ensuring the sealing performance between the spherical sealing head and the lower sealing seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0011] Figure 1 The utility model is a main structural schematic diagram of a liquid molten sulfur tank transport vehicle.

[0012] Figure 2 yes Figure 1 Schematic diagram of the side structure.

[0013] Figure 3 The utility model is a schematic cross-sectional structure diagram of an anti-blocking unloading device in a liquid molten sulfur tank transport vehicle, which shows the structural state of the anti-blocking unloading device when it is installed on the tank body.

[0014] Figure 4 It is a schematic diagram of the main structure of a screw seal cleaning mechanism in an anti-blocking unloading device in the utility model.

[0015] Figure 5 It is a schematic diagram of the main sectional structure of the screw in the utility model.

[0016] Figure 6 yes Figure 3 A magnified schematic diagram of the structure at position I in the figure.

[0017] Figure 7 After removing the screw, gland, split retainer and adjusting ball Figure 6.

[0018] Figure 8 yes Figure 6 Schematic diagram of the top view of the split retaining spring. DETAILED DESCRIPTION

[0019] See also Figure 1 - Figure 8The utility model is a liquid molten sulfur tank transport vehicle, which has a traveling mechanism 1 and a sulfur transport tank 2 mounted on the traveling mechanism, a charging port 3 is arranged on the top of the sulfur transport tank, and a discharge pipeline 4 is arranged on the bottom, characterized in that: the sulfur transport tank 2 is equipped with an anti-blocking discharge device 5 which can be connected or disconnected with the discharge pipeline, the anti-blocking discharge device comprises an upper seat sleeve 8 and a lower sealing seat 9 which are sealed on the top wall 6 and the bottom wall 7 of the tank body of the sulfur transport tank, and the axis of the upper seat sleeve and the axis of the lower sealing seat are located on the same straight line; it also includes an upper sleeve 10, the bottom of the upper sleeve is sealed and connected to the top of the upper sleeve through a connecting flange, and the upper sleeve 10 is A copper nut 11 is fixed in the upper sleeve, and a screw sealing and cleaning mechanism 12 is also fixed in the upper seat sleeve. A screw 13 is threaded inside the copper nut, and the bare rod section at the lower part of the screw passes through the upper sleeve and the screw sealing and cleaning mechanism in sequence. A spherical sealing head 14 that can be sealed with the lower sealing seat 9 is fixed at the bottom of the screw. The top of the screw extends to the top of the copper nut and is equipped with a rotating handle 15. A discharge joint 16 is connected to the bottom of the lower sealing seat 9, and the discharge pipeline 4 is connected to the discharge joint. By turning the rotating handle 15, the spherical sealing head 14 at the bottom of the screw can extend downward to seal with the lower sealing seat 9 or retract upward to disengage from the lower sealing seat. The screw seal cleaning mechanism 12 includes a sleeve 121, a graphite bearing sleeve 122 and a graphite copper sleeve 123. A sleeve seat 124 with an enlarged diameter is formed at the lower part of the sleeve. A plurality of sealing grooves 125 are formed on the inner wall of the sleeve seat. A heat-resistant asbestos sealing ring A126 is installed in each sealing groove. The graphite bearing sleeve is screwed on the upper part of the sleeve, and the graphite copper sleeve is fixed on the inner wall of the graphite bearing sleeve. The sleeve seat 124 of the sleeve is fixed on the lower inner wall of the upper seat sleeve 8. The bare rod section at the lower part of the screw 13 passes through the graphite copper sleeve 123 and the sleeve seat 124. A rectangular upper hole 131 is provided at the bottom of the screw rod 13, and an annular limiting groove 132 is provided on the light rod section near the upper hole. Correspondingly, a screw step mounting hole 141 is provided on the upper part of the spherical sealing head 14, and a lower hole 142 matching the upper hole is provided below the screw step mounting hole; the bottom end of the screw rod 13 extends to the lower hole 142, and a matching adjustment steel ball 143 is installed in the rectangular hole formed by the upper hole and the lower hole, and a split retaining spring 144 is installed in the limiting groove 132 on the screw rod. A pressure cover 145 is screwed into the screw step mounting hole, and the light rod section of the screw rod is loosely matched with the inner wall of the pressure cover. A heat-resistant asbestos sealing ring B146 that seals with the light rod section of the screw rod is installed on the inner wall of the pressure cover. The bottom end of the pressure cover can press the upper end face of the split retaining spring, and there is a gap 147 between the split retaining spring and the hole wall of the screw step mounting hole. Limiting support rods 17 are fixed between the top wall and the bottom wall of the sulphur transport tank, and the axes of these limiting support rods are located on concentric circles outside the axis of the screw rod 13 .

[0020] It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solution described in the embodiments of the utility model. Any modification or equivalent replacement of the utility model to achieve the same technical effect is within the protection scope of the utility model.

Claims

1. A liquid molten sulfur tank transport vehicle, comprising a traveling mechanism (1) and a sulfur transport tank (2) mounted on the traveling mechanism, wherein a charging port (3) is arranged at the top of the sulfur transport tank and a discharge pipeline (4) is arranged at the bottom, and the characteristics are: The sulfur transport tank (2) is provided with an anti-blocking discharge device (5) which can be connected to or disconnected from the discharge pipeline. The anti-blocking discharge device comprises an upper seat sleeve (8) and a lower sealing seat (9) which are sealed on the top wall (6) and bottom wall (7) of the sulfur transport tank. The upper sleeve (10) is also provided. The bottom of the upper sleeve is sealed with the top of the upper seat sleeve via a connecting flange. A copper nut (11) is fixed in the upper sleeve of the upper sleeve (10). A screw sealing cleaning mechanism (12) is also fixed in the upper seat sleeve. A screw (13) is screwed in the copper nut. The bare rod section at the bottom of the screw passes through the upper sleeve and the screw seal cleaning mechanism in sequence. A spherical sealing head (14) that can be sealed with the lower sealing seat (9) is fixed at the bottom of the screw. The top of the screw extends above the copper nut and is equipped with a rotating handle (15). The bottom of the lower sealing seat (9) is connected to a discharge joint (16). The discharge pipeline (4) is connected to the discharge joint. By turning the rotating handle (15), the spherical sealing head (14) at the bottom of the screw can extend downward to seal with the lower sealing seat (9) or retract upward to separate from the lower sealing seat.

2. The liquid molten sulfur tank transport vehicle according to claim 1, characterized in that: The screw seal cleaning mechanism (12) comprises a sleeve (121), a graphite bearing sleeve (122) and a graphite copper sleeve (123); a sleeve seat (124) with an enlarged diameter is formed at the lower part of the sleeve; a plurality of sealing grooves (125) are formed on the inner wall of the sleeve seat; a heat-resistant asbestos sealing ring A (126) is installed in each sealing groove; the graphite bearing sleeve is screwed onto the upper part of the sleeve; the graphite copper sleeve is fixed onto the inner wall of the graphite bearing sleeve; the sleeve seat (124) of the sleeve is fixed onto the lower inner wall of the upper sleeve (8); and the bare rod section at the lower part of the screw (13) passes through the graphite copper sleeve (123) and the sleeve seat (124).

3. The liquid molten sulfur tank transport vehicle according to claim 1, characterized in that: The bottom of the screw rod (13) is provided with a rectangular upper hole (131), and a ring-shaped limiting groove (132) is provided on the smooth rod section near the upper hole. Correspondingly, the upper part of the spherical sealing head (14) is provided with a screw step mounting hole (141), and a lower hole (142) matching with the upper hole is provided below the screw step mounting hole. The bottom end of the screw rod (13) extends to the lower hole (142), and a matching The adjusting steel ball (143) is provided with a split retaining spring (144) in the limiting groove (132) on the screw rod, and the pressure cover (145) is screwed into the stepped mounting hole of the screw rod, and the smooth rod section of the screw rod and the inner wall of the pressure cover are loosely matched, and a heat-resistant asbestos sealing ring B (146) which is sealed with the smooth rod section of the screw rod is provided on the inner wall of the pressure cover, and the bottom end of the pressure cover can press the upper end surface of the split retaining spring, and there is a gap (147) between the split retaining spring and the hole wall of the stepped mounting hole of the screw rod.

4. The liquid molten sulfur tank transport vehicle according to claim 1, characterized in that: Limiting support rods (17) are fixedly arranged between the top wall and the bottom wall of the sulphur transport tank, and the axes of the limiting support rods are located on concentric circles outside the axis of the screw rod (13).

Images