A sulfuric acid production and impurity filtration device

Abstract

This utility model discloses a sulfuric acid production filtration device, including a filter box, a discharge pipe connected to one side of the filter box, a frame-shaped frame matched at the top opening of the filter box, a filter screen installed on the hollow cavity of the frame-shaped frame, rotating rods installed on both side walls at one end of the frame-shaped frame, the rotating rods being rotatably connected to bearing seats, the bearing seats being installed on the top wall of the filter box, and hydraulic cylinders installed on both side walls of the filter box, the bottom end of the hydraulic cylinders being hinged to the side wall of the filter box, and the top end of the piston rod of the hydraulic cylinders being hinged to the side wall of the frame-shaped frame. The beneficial effects of this utility model are: the frame-shaped frame can be raised by the hydraulic cylinders, so that the solid impurity clumps filtered on the filter screen can automatically roll into the impurity storage box set on one side, thereby realizing the function of automatically cleaning solid impurity clumps from the filter screen, reducing the labor intensity of on-site operators, shortening the cleaning time, and ensuring the normal operation of subsequent processes.

Description

Technical fields:

[0001] This utility model belongs to the field of sulfuric acid production, and in particular relates to a sulfuric acid production filter device. Background technology:

[0002] Sulfur-based sulfuric acid production is an industrial method that uses sulfur as a raw material to produce sulfuric acid through three core chemical reactions: combustion, conversion, and absorption. It features a short process flow, low pollution, and high product purity, and is currently the mainstream process in the sulfuric acid industry.

[0003] In the sulfuric acid production process, solid sulfur needs to be fed into the sulfur melting process to melt it into liquid sulfur. Because solid impurities are introduced during the transportation and feeding of sulfur, these impurities form relatively large clumps as the sulfur liquefies. To prevent blockages in subsequent pipelines, the crude liquid sulfur needs to be filtered before entering the sulfur incinerator. Current technology typically involves installing a filter screen at the inlet of the storage tank. The liquid sulfur flows through the filter screen, removing the solid impurities it carries. However, the filter screen cannot be automatically cleaned during use. When a large amount of solid impurities are filtered out, they need to be manually removed, resulting in high labor intensity for on-site workers, lengthy cleaning time, and disruption to subsequent processes. Summary of the Invention:

[0004] The purpose of this utility model is to provide a sulfuric acid production and filtration device, and to overcome the shortcomings of the prior art. It effectively solves the existing problem of high manual labor intensity caused by the filtration of liquid sulfur.

[0005] The present invention relates to a sulfuric acid production filtration device, comprising a filter box, a discharge pipe connected to one side of the filter box, a frame-shaped frame matched at the top opening of the filter box, a filter screen installed on the hollow cavity of the frame-shaped frame, rotating rods installed on both side walls at one end of the frame-shaped frame, the rotating rods being rotatably connected to bearing seats, the bearing seats being installed on the top wall of the filter box, and hydraulic cylinders installed on both side walls of the filter box, the bottom end of the hydraulic cylinders being hinged to the side wall of the filter box, and the top end of the piston rod of the hydraulic cylinders being hinged to the side wall of the frame-shaped frame.

[0006] Furthermore, a semi-enclosed protective plate is vertically installed on the top wall of the frame.

[0007] Furthermore, a pair of clamping rods are vertically installed at both ends of the filter screen, and concave grooves are opened at both ends of the frame, with the clamping rods being engaged in the concave grooves.

[0008] Furthermore, a waste storage box is provided on one side of the unloading end of the filter screen, and the waste storage box is attached to one side wall of the filter box.

[0009] The beneficial effects of this utility model are as follows: the frame can be raised by the hydraulic cylinder, so that the solid impurity clumps filtered out on the filter screen can automatically roll into the storage box set on one side, thereby realizing the function of automatically cleaning the filter screen of solid impurity clumps, reducing the labor intensity of on-site operators, shortening the cleaning time, and ensuring the normal operation of subsequent processes. Attached image description:

[0010] Figure 1 This is the front view of the present invention;

[0011] Figure 2 This is the right view of the present invention;

[0012] Figure 3 This is a top view of the frame and filter screen in this utility model;

[0013] In the diagram, 1 is the filter box, 2 is the discharge pipe, 3 is the frame, 4 is the filter screen, 5 is the rotating rod, 6 is the bearing seat, 7 is the oil cylinder, 8 is the semi-enclosed guard plate, 9 is the clamping rod, 10 is the concave groove, and 11 is the storage box. Detailed implementation method:

[0014] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings:

[0015] like Figures 1 to 3 As shown, a sulfuric acid production filtration device includes a filter box 1, a discharge pipe 2 connected to one side of the filter box 1, a frame 3 matched at the top opening of the filter box 1, filter screens 4 installed on the hollow cavity of the frame 3, rotating rods 5 installed on both side walls at one end of the frame 3, the rotating rods 5 being rotatably connected to bearing seats 6, the bearing seats 6 being installed on the top wall of the filter box 1, and hydraulic cylinders 7 installed on both side walls of the filter box 1. The piston rod of the oil cylinder 7 is hinged to the side wall of the filter box 1, and the top of the piston rod of the oil cylinder 7 is hinged to the side wall of the frame 3. A semi-enclosed guard plate 8 is vertically installed on the top wall of the frame 3. A pair of clamping rods 9 are vertically installed at both ends of the filter screen 4. A concave groove 10 is opened at both ends of the frame 3, and the clamping rods 9 are clamped in the concave groove 10. A storage box 11 is provided on one side of the unloading end of the filter screen 4, and the storage box 11 is attached to one end side wall of the filter box 1.

[0016] Specifically, the frame 3 can be raised by the hydraulic cylinder 7, so that the solid impurities filtered out on the filter screen 4 can automatically roll into the storage box 11 set on one side.

[0017] In actual use, crude liquid sulfur is transported by a chute and flows naturally downwards from directly above filter box 1. At this time, the metal filter screen 4 installed at the top of filter box 1 filters out the fixed impurity clumps carried in the crude liquid sulfur. The filtered fine liquid sulfur is transported to the downstream production system through discharge pipe 2. When the filter screen 4 filters out a large number of solid impurity clumps, the upstream crude liquid sulfur is first stopped, and then the hydraulic cylinder 7 is started to lift the frame 3, so that one end of the frame 3 rotates around the rotating rod 5. During the tilting of the frame 3, the solid impurity clumps filtered out on the filter screen 4 roll down into the storage box 11 located on one side of filter box 1 for temporary storage. The semi-enclosed protective plate installed vertically on the top wall of the frame forms a semi-enclosed shape between the two horizontal frames of the frame and the vertical frame on the non-discharge end side. A discharge port is reserved on the discharge end side to further prevent solid impurities filtered by the filter screen 4 from falling off the filter box 1 while achieving normal discharge function; the clamping rod 9 is clamped in the concave groove 10, which enables quick installation and disassembly between the frame 3 and the filter screen 4. For example, when the mesh of the filter screen 4 is normally blocked and needs to be disassembled for backwashing, the filter screen 4 can be quickly removed from the frame 3 for cleaning or replacement. During installation, simply align the clamping rod 9 with the concave groove 10 and clamp it in to complete the installation; when the filter screen 4 is installed on the frame 3, the top walls of both are on the same plane, which further facilitates the quick and smooth rolling of solid impurities on the filter screen 4 into the storage box 11; the hinges used at both ends of the cylinder 7 are common knowledge in the field and will not be described in detail here.

[0018] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sulphuric acid plant for the production of sulphuric acid, characterized in that: The filter box (1) is connected to a discharge pipe (2) on one side. A frame (3) is matched at the top opening of the filter box (1). A filter screen (4) is installed on the hollow cavity of the frame (3). A rotating rod (5) is installed on both side walls of one end of the frame (3). The rotating rod (5) is rotatably connected to a bearing seat (6). The bearing seat (6) is installed on the top wall of the filter box (1). A hydraulic cylinder (7) is provided on both side walls of the filter box (1). The bottom end of the hydraulic cylinder (7) is hinged to the side wall of the filter box (1). The top end of the piston rod of the hydraulic cylinder (7) is hinged to the side wall of the frame (3).

2. A sulphuric acid plant according to claim 1, c h a r a c t e r i s e d in that A semi-enclosed protective plate (8) is vertically installed on the top wall of the frame (3).

3. The sulfur-based acid production and impurity filtration device according to claim 1, characterized in that: A pair of clamping rods (9) are vertically installed at both ends of the filter screen (4), and concave grooves (10) are opened at both ends of the frame (3), and the clamping rods (9) are clamped in the concave grooves (10).

4. The sulfur-based acid production and impurity filtration device according to claim 1, characterized in that: A storage box (11) is provided on one side of the unloading end of the filter screen (4), and the storage box (11) is attached to one side wall of the filter box (1).

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